| 1 | Jostein Gaarder | Hello? Is Anybody There? | | NOVEL | 9781444003239 | 1997-11-10 | 2010-10-07 | £3.49 |
| 2 | Diana Gabaldon | A Trail of Fire | Outlander (Diana Gabaldon) | COLLECTION | 9781409144496 | 2012-10-11 | 2012-11-08 | £5.99 |
| 3 | Sean Gabb | The Break | | NOVEL | 9781291873917 | 2014-06-01 | 2014-06-01 | £24.99 |
| 4 | Neil Gaiman | Black Dog | ? | CHAPBOOK | 9781472235442 | 2016-11-03 | 2016-11-03 | £18.99 |
| 5 | Neil Gaiman | The Monarch of the Glen | ? | CHAPBOOK | 9781472235435 | 2016-11-03 | 2016-11-03 | £18.99 |
| 6 | Lettice Galbraith | The Blue Room & Other Ghost Stories | | COLLECTION | 1902309057 | 1999-07-01 | 1999-07-01 | £18.00 |
| 7 | Lettice Galbraith | The Shadow on the Blind and Other Stories | | OMNIBUS | 1840226129 | 2007-06-10 | 2007-06-10 | £2.99 |
| 8 | Lettice Galbraith | The Trainer's Ghost and Other Stories | | COLLECTION | 1840226129 | 2007-06-10 | 2007-06-10 | £2.99 |
| 9 | David Gale | A Diet of Holes | | NOVEL | 0233983317 | 1988-01-01 | 1988-01-01 | £11.95 |
| 10 | John Gale | A Damask of the Dead | | COLLECTION | 1872621635 | 2002-02-01 | 2002-02-01 | £25.00 |
| 11 | J. V. Gallagher | Gameworld | | NOVEL | 0747239789 | 1993-02-01 | 1993-02-01 | £4.99 |
| 12 | Steve Gallagher | Saturn 3 | | NOVEL | 0722137621 | 1980-01-01 | 1980-01-01 | £0.95 |
| 13 | Steve Gallagher | The Last Rose of Summer | | NOVEL | 055210938X | 1978-01-01 | 1978-01-01 | £0.85 |
| 14 | Antoine Galland | Arabian Nights' Entertainments | | NOVEL | 9780199555871 | 1998-01-01 | 2009-07-01 | £12.99 |
| 15 | Ben Galley | Dead Stars: Part One | Emaneska | NOVEL | 9780956770066 | 2013-05-31 | 2013-05-31 | £9.99 |
| 16 | Ben Galley | Dead Stars: Part Two | Emaneska | NOVEL | 9780956770080 | 2013-05-31 | 2013-05-31 | £9.99 |
| 17 | Janice Galloway | Blood | | COLLECTION | 9781446467862 | 1991-01-01 | 2011-04-30 | £4.99 |
| 18 | Raymond Z. Gallun | Asteroid of Fear | ? | CHAPBOOK | 9781153652957 | 2010-06-12 | 2010-09-19 | £6.29 |
| 19 | Raymond Z. Gallun | Stamped Caution | ? | CHAPBOOK | 9781153648233 | 2010-04-19 | 2010-09-18 | £6.29 |
| 20 | David Gamer | The Pilot | | NOVEL | None on record | 2019-01-01 | 2019-01-01 | £9.99 |
| 21 | Esther Garber | 34 | | NOVEL | 095462758X | 2004-05-01 | 2004-05-01 | £7.99 |
| 22 | Gabriel García Márquez | A Very Old Man with Enormous Wings and The Sea of Lost Time | | COLLECTION | 9780241969588 | 2014-02-27 | 2014-02-27 | £1.99 |
| 23 | Gabriel García Márquez | In Evil Hour | | NOVEL | 9780241968710 | 2014-03-06 | 2014-03-06 | £8.99 |
| 24 | Gabriel García Márquez | Innocent Eréndira and Other Stories | | COLLECTION | 9780241968642 | 1978-07-01 | None | £8.99 |
| 25 | Gabriel García Márquez | Leaf Storm | ? | CHAPBOOK | 9780241968765 | 1972-01-01 | 2014-03-06 | £8.99 |
| 26 | Adelaida Garcia Morales | The Silence of the Sirens | | NOVEL | 000223338X | 1988-01-01 | 1988-07-04 | £10.95 |
| 27 | Jane Gardam | Going Into a Dark House | | COLLECTION | 9781405525725 | 1994-09-26 | 2013-02-07 | £7.99 |
| 28 | Jane Gardam | Missing the Midnight: Hauntings & Grotesques | | COLLECTION | 1856196739 | 1997-01-01 | 1997-11-01 | £10.00 |
| 29 | Jane Gardam | The People on Privilege Hill and Other Stories | | COLLECTION | 9780701177997 | 2007-11-01 | 2007-11-01 | £12.99 |
| 30 | Donald J. Garden | Dawn Chorus | | NOVEL | 0709151446 | 1975-01-01 | 1975-01-01 | £2.80 |
| 31 | David Gardiner | Solid Gold: Anthology of the very best short fiction from Gold Dust Magazine | | ANTHOLOGY | 9780955543081 | 2009-09-01 | 2009-09-01 | £7.99 |
| 32 | Judy Gardiner | The Big Goodnight | | NOVEL | 0600205657 | 1983-01-03 | 1983-01-03 | £1.25 |
| 33 | Judy Gardiner | The Quick and the Dead | | NOVEL | 0600202259 | 1981-05-28 | 1981-05-28 | £1.00 |
| 34 | Cate Gardner | The Bureau of Them | ? | CHAPBOOK | 9781911390961 | 2015-07-01 | 2016-09-23 | £1.00 |
| 35 | Katy Gardner | Keefer's Rules | | NOVEL | 9780718146801 | 2008-08-07 | 8888-01-01 | £9.99 |
| 36 | Martin Gardner | Puzzles from Other Worlds | SF Puzzles | COLLECTION | 0192860666 | 1984-01-01 | 1986-03-01 | £3.95 |
| 37 | Sally Gardner | Invisible in a Bright Light | | NOVEL | 9781786695239 | 2019-10-17 | 2020-04-02 | £7.99 |
| 38 | Sally Gardner | The Double Shadow | | NOVEL | 9781780620374 | 2011-11-03 | 2011-11-03 | £6.49 |
| 39 | Sally Gardner | The Wind in the Wall | | NOVEL | 9781471404986 | 2018-10-18 | 2018-10-18 | £12.99 |
| 40 | Sally Gardner | Tinder | | NOVEL | 9781780621487 | 2013-11-07 | 2015-10-01 | £7.99 |
| 41 | Leon Garfield | The Golden Shadow | | NOVEL | 9781448173938 | 1973-01-01 | 2013-10-30 | £4.99 |
| 42 | Alan Garner | The Alan Garner Omnibus: Elidor / The Weirdstone of Brisingamen / The Moon of Gomrath | | OMNIBUS | 0006750656 | 1994-01-01 | 1994-11-01 | £6.99 |
| 43 | Alan Garner | The Guizer: A Book of Fools | | COLLECTION | 0241892228 | 1975-01-01 | 1975-01-01 | £4.00 |
| 44 | Graham Garner | Rifts of Time | | NOVEL | 0709152779 | 1976-03-01 | 1976-03-01 | £2.90 |
| 45 | Graham Garner | Space Probe | | NOVEL | 0709142366 | 1974-07-01 | 1974-07-01 | £ |
| 46 | Bill Garnett | The Unbegotten | | NOVEL | 0600204383 | 1982-09-01 | 1982-09-01 | £1.25 |
| 47 | David Garnett | New Worlds 1 | New Worlds (Garnett) | ANTHOLOGY | 0575051345 | 1991-09-01 | 1991-09-26 | £4.99 |
| 48 | David Garnett | New Worlds 2 | New Worlds (Garnett) | ANTHOLOGY | 0575051450 | 1992-08-01 | 1992-08-01 | £5.99 |
| 49 | David Garnett | New Worlds 3 | New Worlds (Garnett) | ANTHOLOGY | 0575051469 | 1993-09-01 | 1993-09-01 | £6.99 |
| 50 | David Garnett | New Worlds 4 | New Worlds (Garnett) | ANTHOLOGY | 0575051477 | 1994-11-01 | 1994-11-01 | £6.99 |
| 51 | David Garnett | Space Wasters | | NOVEL | 1841490121 | 2001-05-01 | 2001-05-01 | £6.99 |
| 52 | David Garnett | Stargonauts | | NOVEL | 1857231864 | 1994-11-01 | 1994-11-01 | £4.99 |
| 53 | David S. Garnett | Cosmic Carousel | | COLLECTION | 0709150032 | 1976-01-01 | 1976-02-01 | £2.90 |
| 54 | David S. Garnett | Phantom Universe | | NOVEL | 0709149492 | 1975-01-01 | 1975-01-01 | £2.70 |
| 55 | David S. Garnett | The Forgotten Dimension | | NOVEL | 0709147716 | 1975-01-01 | 1975-01-01 | £2.40 |
| 56 | David S. Garnett | The Orbit Science Fiction Yearbook 1 | | ANTHOLOGY | 0708882927 | 1988-11-01 | 1988-11-01 | £4.99 |
| 57 | David S. Garnett | The Orbit Science Fiction Yearbook Three | | ANTHOLOGY | 0708883370 | 1990-08-01 | 1990-08-01 | £4.99 |
| 58 | David S. Garnett | The Orbit Science Fiction Yearbook Two | | ANTHOLOGY | 0708883168 | 1989-08-01 | 1989-08-01 | £4.99 |
| 59 | David S. Garnett | Time in Eclipse | | NOVEL | 0709140207 | 1974-01-01 | 1974-01-01 | £1.60 |
| 60 | David S. Garnett | Zenith 2 | | ANTHOLOGY | 0747405913 | 1990-01-01 | 1990-07-01 | £3.99 |
| 61 | David S. Garnett | Zenith: The Best in New British Science Fiction | | ANTHOLOGY | 0747403414 | 1989-01-01 | 1989-06-01 | £3.50 |
| 62 | Mark Garrett | Angels Cry Too | Angels Cry Too | NOVEL | 190588656X | 2007-04-03 | 2007-04-03 | £7.99 |
| 63 | Mark Garrett | Golden Dawn | Angels Cry Too | NOVEL | 9781906510404 | 2008-07-17 | 2008-07-17 | £8.49 |
| 64 | Randall Garrett | The Bramble Bush, The Destroyers, The Highest Treason, A Spaceship Named McGuire; A Collection of Short Stories | | COLLECTION | 9781849025362 | 2011-01-31 | 2011-01-31 | £19.99 |
| 65 | Sasha Garrydeb | Galactic Sniffers | Praut Detective Agency | NOVEL | 9780954814496 | 2013-06-23 | 2013-06-23 | £9.95 |
| 66 | Jeff Garston | Jailbreak to Triassica | | NOVEL | 1857760204 | 1995-06-01 | 1995-06-01 | £15.95 |
| 67 | Jonathan Gash | A Rag, a Bone and a Hank of Hair | Lovejoy | NOVEL | 0330373773 | 1999-05-01 | 2000-01-01 | £5.99 |
| 68 | Jonathan Gash | Every Last Cent | Lovejoy | NOVEL | 0330486527 | 2000-06-01 | 2002-01-01 | £5.99 |
| 69 | Jonathan Gash | Jade Woman | Lovejoy | NOVEL | 0099653400 | 1988-10-01 | 1991-01-01 | £3.99 |
| 70 | Jonathan Gash | Paid and Loving Eyes | Lovejoy | NOVEL | 0099227711 | 1993-01-01 | 1993-01-01 | £4.99 |
| 71 | Jonathan Gash | Pearlhanger | Lovejoy | NOVEL | 9781472102980 | 1985-01-01 | 2014-04-03 | £6.99 |
| 72 | Jonathan Gash | Ten Word Game | Lovejoy | NOVEL | 0749083212 | 2003-01-01 | 2004-01-01 | £6.99 |
| 73 | Jonathan Gash | The Gondola Scam | Lovejoy | NOVEL | 9781472102966 | 1984-01-01 | 2014-04-03 | £6.99 |
| 74 | Jonathan Gash | The Grace in Older Women | Lovejoy | NOVEL | 071267537X | 1995-01-01 | 1995-01-01 | £15.99 |
| 75 | Jonathan Gash | The Great California Game | Lovejoy | NOVEL | 0099863405 | 1991-01-01 | 1991-01-01 | £3.99 |
| 76 | Jonathan Gash | The Judas Pair | Lovejoy | NOVEL | 9781472102836 | 1977-01-01 | 2013-03-21 | £6.98 |
| 77 | Jonathan Gash | The Lies of Fair Ladies | Lovejoy | NOVEL | 0099110016 | 1992-01-01 | 1992-01-01 | £3.99 |
| 78 | Jonathan Gash | The Possessions of a Lady | Lovejoy | NOVEL | 0712677267 | 1996-11-01 | 1996-11-01 | £15.99 |
| 79 | Jonathan Gash | The Rich and the Profane | Lovejoy | NOVEL | 0330353608 | 1998-04-01 | 1999-01-01 | £5.99 |
| 80 | Jonathan Gash | The Sin Within Her Smile | Lovejoy | NOVEL | 0099384418 | 1993-11-01 | 1994-01-01 | £4.99 |
| 81 | Jonathan Gash | The Very Last Gambado | Lovejoy | NOVEL | 0099740206 | 1989-10-01 | 1991-01-01 | £3.99 |
| 82 | Jonathan Gash | The Year of the Woman | | NOVEL | 0749083166 | 2004-10-01 | 2004-10-01 | £18.99 |
| 83 | Elizabeth Gaskell | Gothic Tales | | COLLECTION | 014043741X | 2000-01-01 | 2000-07-29 | £7.99 |
| 84 | Jane Gaskell | Sun Bubble | | NOVEL | 0297797190 | 1990-08-16 | 1990-08-16 | £13.50 |
| 85 | Mrs. Gaskell | The Collected Supernatural and Weird Fiction of Mrs. Gaskell: Volume 1 | The Collected Supernatural and Weird Fiction of Mrs. Gaskell | COLLECTION | 9780857069764 | 2012-08-26 | 2012-08-26 | £20.99 |
| 86 | Mrs. Gaskell | The Collected Supernatural and Weird Fiction of Mrs. Gaskell: Volume 2 | The Collected Supernatural and Weird Fiction of Mrs. Gaskell | COLLECTION | 9780857069795 | 2012-08-26 | 2012-08-26 | £12.99 |
| 87 | Stephen Gaskell | Tales from the Edge: Escalation | Maelstrom's Edge | ANTHOLOGY | None on record | 2017-07-08 | 2017-07-08 | £3.86 |
| 88 | John Gaskin | The New Inn Hall Deception | | COLLECTION | 9781912586134 | 2019-07-11 | 2019-07-11 | £35.00 |
| 89 | Stephen Gately | The Tree of Seasons | | NOVEL | 9781444709902 | 2010-05-13 | 2010-05-13 | £5.49 |
| 90 | Susan Gates | Cry Wolf | | NOVEL | 0590113607 | 1999-01-01 | 1999-01-01 | £4.99 |
| 91 | Susan Gates | Don't Mess With Angels | | NOVEL | 074455490X | 1997-01-01 | 1997-01-01 | £3.99 |
| 92 | Susan Gates | Firebird | | NOVEL | 0141319046 | 2005-07-01 | 2005-07-01 | £5.99 |
| 93 | Susan Gates | Fisherwitch | ? | CHAPBOOK | 0590191063 | 1998-01-01 | 1998-01-01 | £ |
| 94 | Susan Gates | Invasion of the Vampire Spiders | | NOVEL | 9781405663090 | 2002-01-17 | 2009-01-05 | £9.99 |
| 95 | Susan Gates | Iron Heads | | NOVEL | 0192751123 | 2000-11-01 | 2000-11-01 | £3.99 |
| 96 | Susan Gates | Pagans | | NOVEL | 0439014697 | 2000-08-01 | 2000-08-01 | £4.99 |
| 97 | Susan Gates | Revenge of the Toffee Monster | | NOVEL | 0141302240 | 1999-08-05 | 1999-08-05 | £4.99 |
| 98 | Jonathan Gathorne-Hardy | Particle Theory | | NOVEL | 9781448130450 | 1996-01-01 | 2012-01-31 | £4.99 |
| 99 | Mark Gatiss | Last of the Gaderene | Doctor Who BBC Past Doctors | NOVEL | 9781448141210 | 2000-01-01 | 2013-03-07 | £6.99 |
| 100 | Mark Gatiss | St Anthony's Fire | Doctor Who New Adventures | NOVEL | 0426204239 | 1994-10-01 | 1994-10-01 | £4.99 |
| 101 | Mark Gatiss | The Roundheads | Doctor Who BBC Past Doctors | NOVEL | 9781849909037 | 1997-11-01 | 2015-02-12 | £7.99 |
| 102 | Simon Gatley | The Benevolent Dragon | ? | CHAPBOOK | 9780956678850 | 2010-11-30 | 2010-11-30 | £6.99 |
| 103 | Will Gatti | Abe's Team | | NOVEL | 0192752944 | 2002-05-01 | 2003-06-01 | £4.99 |
| 104 | Jamila Gavin | Ali and the Robots | | NOVEL | 0416539602 | 1986-10-01 | 1986-10-01 | £4.95 |
| 105 | Jamila Gavin | From Out of the Shadows | | COLLECTION | 1405202807 | 2002-11-01 | 2002-11-01 | £4.99 |
| 106 | Jamila Gavin | The Wormholers | | NOVEL | 0416190006 | 1996-08-01 | 1996-08-01 | £9.99 |
| 107 | Anne Gay | Dancing on the Volcano | Queen Iruna | NOVEL | 1857231317 | 1993-03-01 | 1994-01-01 | £5.99 |
| 108 | Anne Gay | Mindsail | | NOVEL | 035618806X | 1990-05-01 | 1990-05-10 | £12.95 |
| 109 | Anne Gay | The Brooch of Azure Midnight | | NOVEL | 0356196968 | 1991-09-01 | 1991-09-01 | £13.95 |
| 110 | Anne Gay | To Bathe in Lightning | Queen Iruna | NOVEL | 185723314X | 1995-07-01 | 1995-07-01 | £5.99 |
| 111 | Cecily Gayford | Tales from the Dead of Night: Twelve Classic Ghost Stories | | ANTHOLOGY | 9781781250945 | 2013-09-26 | 2013-09-26 | £9.99 |
| 112 | Pauline Gedge | Lords of the Two Lands | | NOVEL | 0340770937 | 2001-05-01 | 2001-05-01 | £17.99 |
| 113 | Maggie Gee | Lost Children | | NOVEL | 0002241323 | 1994-04-21 | 1994-04-21 | £5.99 |
| 114 | Maurice Gee | The Priests of Ferris | World of O | NOVEL | 014032061X | 1984-01-01 | 1987-09-01 | £1.95 |
| 115 | Alan Lloyd Gelb | The Janissary | | NOVEL | 0600200949 | 1978-01-01 | 1980-02-21 | £1.25 |
| 116 | Ken Gelder | The Oxford Book of Australian Ghost Stories | | ANTHOLOGY | 0195539559 | 1994-01-01 | 1997-01-01 | £11.99 |
| 117 | Uri Geller | Dead Cold | | NOVEL | 0747221286 | 1999-05-01 | 1999-05-01 | £16.99 |
| 118 | Uri Geller | Ella | | NOVEL | 0747276439 | 1998-05-01 | 1998-05-01 | £9.99 |
| 119 | Uri Geller | Shawn | | NOVEL | 1871406099 | 1990-04-01 | 1990-04-01 | £12.95 |
| 120 | David Gemmell | Drenai Tales | The Drenai Saga | OMNIBUS | 0712646299 | 1991-01-01 | 1991-03-01 | £9.99 |
| 121 | David Gemmell | Drenai Tales: Volume One | | OMNIBUS | 1841490849 | 2001-11-01 | 2001-11-01 | £12.99 |
| 122 | David Gemmell | Drenai Tales: Volume Three | The Drenai Saga | OMNIBUS | 0593049187 | 2002-10-01 | 2002-10-01 | £12.99 |
| 123 | David Gemmell | Drenai Tales: Volume Two | The Drenai Saga | OMNIBUS | 1841491306 | 2002-07-01 | 2002-07-01 | £17.99 |
| 124 | David Gemmell | Hawk Queen: Omnibus | Hawk Queen | OMNIBUS | 9780356503769 | 2014-07-03 | 2014-07-03 | £9.99 |
| 125 | David Gemmell | Rhyming Rings | | NOVEL | 9781473219946 | 2017-05-18 | 2017-09-21 | £8.99 |
| 126 | David Gemmell | Stones of Power: Omnibus | Stones of Power (Arthurian) | OMNIBUS | 9780356503813 | 2014-07-03 | 2014-07-03 | £9.99 |
| 127 | David Gemmell | Stones of Power: The Sipstrassi Omnibus | Sipstrassi or Stones of Power | OMNIBUS | 0712654461 | 1992-01-01 | 1992-10-01 | £9.99 |
| 128 | David Gemmell | The Complete Chronicles of the Jerusalem Man | Jon Shannow | OMNIBUS | 0099663414 | 1995-01-01 | 1995-12-01 | £15.99 |
| 129 | Stuart Gendall | Weekend Book of Science Fiction | | ANTHOLOGY | 0851441807 | 1981-01-01 | 1981-01-01 | £1.00 |
| 130 | D. Michelle Gent | Cruel ... and Unusual | | NOVEL | 9781907939099 | 2011-03-31 | 2011-09-01 | £7.99 |
| 131 | D. Michelle Gent | Deadlier ... Than the Male | | NOVEL | 9781907939013 | 2010-09-01 | 2010-09-20 | £7.99 |
| 132 | Mary Gentle | Ilario | | OMNIBUS | 9780575128842 | 2013-08-29 | 2013-08-29 | £2.99 |
| 133 | Mary Gentle | Ilario: The Lion's Eye | Ilario | OMNIBUS | 0575076615 | 2006-11-01 | 2006-11-01 | £20.00 |
| 134 | Mary Gentle | Left to His Own Devices | Rat Lords | COLLECTION | 1857232755 | 1994-01-01 | 1995-05-01 | £5.99 |
| 135 | Mary Gentle | Left to His Own Devices | Rat Lords | NOVEL | 0575075198 | 1994-01-01 | 2003-04-01 | £9.99 |
| 136 | Mary Gentle | Orthe: Chronicles of Carrick V | Golden Witchbreed | OMNIBUS | 0575072873 | 2002-04-01 | 2002-04-01 | £9.99 |
| 137 | Mary Gentle | Scholars and Soldiers | | COLLECTION | 0708883443 | 1989-01-01 | 1991-01-01 | £3.99 |
| 138 | Mary Gentle | Under the Penitence | ? | CHAPBOOK | 190461910X | 2004-12-01 | 2004-12-01 | £10.00 |
| 139 | Mary Gentle | White Crow | Rat Lords | OMNIBUS | 0575075198 | 2003-04-10 | 2003-04-01 | £9.99 |
| 140 | Alistair Gentry | Their Heads are Anonymous | | NOVEL | 1901072029 | 1996-12-11 | 1996-12-11 | £7.99 |
| 141 | Jon George | Faces of Mist and Flame | | NOVEL | 9781976882326 | 2004-05-01 | 2018-01-31 | £11.99 |
| 142 | Jon George | Zootsuit Black | | NOVEL | 0330419854 | 2006-05-01 | None | £6.99 |
| 143 | Adèle Geras | A Lane to the Land of the Dead and Other Stories of the Supernatural | | COLLECTION | 0140369422 | 1996-01-01 | 1996-02-01 | £4.99 |
| 144 | Adèle Geras | Dido | | NOVEL | 9781849920063 | 2009-05-01 | 2010-04-29 | £6.99 |
| 145 | Adèle Geras | Watching the Roses | Egerton Hall | NOVEL | 0099417235 | 1991-01-01 | 2001-08-01 | £4.99 |
| 146 | Michael Gerber | Barry Trotter Boxed Set | Barry Trotter | OMNIBUS | 0575076585 | 2004-10-21 | 2004-10-21 | £19.99 |
| 147 | Michael Gerber | Barry Trotter and the Dead Horse | Barry Trotter | NOVEL | 0575078944 | 2004-01-01 | 2006-06-01 | £12.99 |
| 148 | Michael Gerber | Barry Trotter and the Shameless Parodies | Barry Trotter | OMNIBUS | 0575078944 | 2006-06-01 | 2006-06-01 | £12.99 |
| 149 | Michael Gerber | The Chronicles of Blarnia | | NOVEL | 0575078162 | 2005-09-15 | 2006-10-12 | £5.99 |
| 150 | Sylvie Germain | Prague Noir: The Weeping Woman on the Streets of Prague | | NOVEL | 9781903517734 | 2009-09-01 | 2009-09-01 | £8.99 |
| 151 | Sylvie Germain | The Medusa Child | | NOVEL | 1873982313 | 1994-01-01 | 1994-01-01 | £8.99 |
| 152 | Sylvie Germain | The Weeping Woman on the Streets of Prague | | NOVEL | 1873982704 | 1993-11-01 | 1993-11-01 | £6.99 |
| 153 | Jack Gerson | The Evil Thereof | | NOVEL | 0749900806 | 1991-07-01 | 1991-07-01 | £13.95 |
| 154 | Jack Gerson | The Omega Factor | | NOVEL | 0563177373 | 1979-07-12 | 1979-09-06 | £4.75 |
| 155 | Nick Gevers | Breakout (Postscripts #34/35) | Postscripts | ANTHOLOGY | 9781848639218 | 2015-08-01 | 2015-08-01 | £30.00 |
| 156 | Nick Gevers | Edison's Frankenstein (Postscripts #20/21) | Postscripts | ANTHOLOGY | 9781848630482 | 2009-12-01 | 2009-12-01 | £59.99 |
| 157 | Nick Gevers | Enemy of the Good (Postscripts #19) | Postscripts | ANTHOLOGY | 9781848630192 | 2009-10-01 | 2009-10-01 | £30.00 |
| 158 | Nick Gevers | Extrasolar | | ANTHOLOGY | 9781786362308 | 2017-08-01 | 2018-03-01 | £4.31 |
| 159 | Nick Gevers | Far Voyager (Postscripts #32/33) | Postscripts | ANTHOLOGY | None on record | 2014-11-01 | 2015-11-22 | £3.94 |
| 160 | Nick Gevers | Infinity Plus One | Infinity Plus | ANTHOLOGY | 1902880234 | 2001-11-01 | 2001-11-01 | £60.00 |
| 161 | Nick Gevers | Infinity Plus Two | Infinity Plus | ANTHOLOGY | 1902880587 | 2003-05-01 | 2003-05-01 | £45.00 |
| 162 | Nick Gevers | Memoryville Blues (Postscripts #30/31) | Postscripts | ANTHOLOGY | 9781848635777 | 2013-08-01 | 2013-08-01 | £60.00 |
| 163 | Nick Gevers | The Company He Keeps (Postscripts 22/23) | Postscripts | ANTHOLOGY | 9781848630499 | 2010-09-01 | 2010-09-01 | £59.99 |
| 164 | Nick Gevers | The Dragons of the Night (Postscripts #36/37) | Postscripts | ANTHOLOGY | 9781848639782 | 2016-05-01 | 2016-05-01 | £30.00 |
| 165 | Nick Gevers | The New and Perfect Man (Postscripts #24/25) | Postscripts | ANTHOLOGY | 9781848631663 | 2011-03-01 | 2011-03-01 | £60.00 |
| 166 | Nick Gevers | This Is the Summer of Love (Postscripts #18) | Postscripts | ANTHOLOGY | 9781848630215 | 2009-05-01 | 2009-05-01 | £28.00 |
| 167 | Nick Gevers | Unfit for Eden: Postscripts 26/27 | Postscripts | ANTHOLOGY | 9781848632998 | 2012-01-01 | 2012-05-01 | £59.99 |
| 168 | Basma Ghalayini | Palestine + 100: Stories from a Century After the Nakba | | ANTHOLOGY | None on record | 2019-07-01 | 2019-07-25 | £5.99 |
| 169 | Anton Ghul | Scumfuck | | NOVEL | 9780956170255 | 2010-09-20 | 2010-09-20 | £7.99 |
| 170 | Anton Ghul | The Necromancer's Coven | | NOVEL | 9780956170200 | 2010-03-25 | 2010-03-25 | £6.99 |
| 171 | T. S. J. Gibbard | The Starseed Mission | | NOVEL | 0709182511 | 1980-01-01 | 1980-01-01 | £5.25 |
| 172 | T. S. J. Gibbard | The Torold Core | | NOVEL | 0709186010 | 1980-11-17 | 1980-11-17 | £5.75 |
| 173 | David Gibbins | Pyramid | Jack Howard | NOVEL | 9780755374342 | 2014-06-11 | 2014-06-11 | £9.99 |
| 174 | David Gibbins | The Last Gospel | Jack Howard | NOVEL | 9780755335169 | 2008-02-21 | 2008-08-21 | £6.99 |
| 175 | Alan Gibbons | Renegade | Hell's Underground | NOVEL | 9781842551813 | 2009-07-16 | 2009-07-16 | £7.99 |
| 176 | Alan Gibbons | Rise of the Blood Moon | Darkwing | NOVEL | 9781444003987 | 2006-07-01 | 2010-12-29 | £3.49 |
| 177 | Alan Gibbons | Shadow of the Minotaur | Legendeer | NOVEL | 9781444003949 | 2000-02-01 | 2010-12-23 | £4.49 |
| 178 | Alan Gibbons | The Darkwing Omnibus | Darkwing | OMNIBUS | 9781842556177 | 2007-10-01 | 2007-10-01 | £8.99 |
| 179 | Alan Gibbons | The Demon Assassin | Hell's Underground | NOVEL | 9781444001440 | 2008-07-01 | 2010-09-02 | £5.99 |
| 180 | Alan Gibbons | The Legendeer Trilogy | Legendeer | OMNIBUS | 9781842556245 | 2008-02-01 | 2008-02-01 | £9.99 |
| 181 | Alan Gibbons | The Three Heads of Cerberus | | COLLECTION | 9780956948281 | 2012-09-03 | 2012-09-03 | £6.99 |
| 182 | Alan Gibbons | Vampyr Legion | Legendeer | NOVEL | 9781444003956 | 2000-11-01 | 2010-12-23 | £4.49 |
| 183 | Alan Gibbons | Warriors of the Raven | Legendeer | NOVEL | 9781444003963 | 2001-04-01 | 2010-12-23 | £4.49 |
| 184 | Alan Gibbons | Witch Breed | Hell's Underground | NOVEL | 9781842557808 | 2010-07-01 | 2010-07-01 | £7.99 |
| 185 | Carl Gibeily | Blueprint for a Prophet | | NOVEL | 0552997315 | 1997-01-01 | 1998-06-01 | £6.99 |
| 186 | Gary Gibson | Against Gravity | | NOVEL | 9780230763555 | 2005-08-01 | 2011-08-05 | £14.99 |
| 187 | Gary Gibson | Empire of Light | Shoal Sequence | NOVEL | 9781447224112 | 2010-07-01 | None | £10.99 |
| 188 | Gary Gibson | Final Days | The Final Days | NOVEL | 9780330519694 | 2011-08-05 | 2012-06-07 | £7.99 |
| 189 | Gary Gibson | Ghost Frequencies | ? | CHAPBOOK | 9781910935798 | 2018-06-19 | 2018-06-19 | £15.99 |
| 190 | Gary Gibson | Nova War | Shoal Sequence | NOVEL | 9781447224105 | 2009-04-09 | None | £9.99 |
| 191 | Gary Gibson | Stealing Light | Shoal Sequence | NOVEL | 9781447224099 | 2007-10-01 | None | £8.99 |
| 192 | James Gibson | Science Fiction | | ANTHOLOGY | 0719535026 | 1978-05-01 | 1978-05-01 | £0.60 |
| 193 | Robert Gibson | The Drop | Kroth | NOVEL | 9781909224957 | 2013-12-13 | 2013-12-13 | £8.99 |
| 194 | Robert Gibson | Valeddom | Valeddom | NOVEL | 9781908075208 | 2011-09-15 | 2011-09-15 | £9.99 |
| 195 | John Gideon | Red Ball | | NOVEL | 0747209642 | 1994-08-01 | 1994-08-01 | £16.99 |
| 196 | Nick Gifford | Flesh and Blood | | NOVEL | 0141316055 | 2004-01-01 | 2004-01-01 | £4.99 |
| 197 | Nick Gifford | Incubus | | NOVEL | 0141317310 | 2005-02-01 | 2005-02-01 | £5.99 |
| 198 | P. S. Gifford | Dr. Offig's Lessons from the Dark Side, Volume 1 | | NOVEL | 9780980150629 | 2008-05-12 | 2008-05-12 | £5.55 |
| 199 | Harry Gilbert | Ghost's Playground | ? | CHAPBOOK | 0946826811 | 1987-06-01 | 1987-06-01 | £4.95 |
| 200 | Harry Gilbert | The Star Zoo | ? | CHAPBOOK | 9780194786614 | 2008-01-01 | 2013-02-25 | £6.66 |
| 201 | John Gilchrist | Out North | | NOVEL | 0709147848 | 1975-01-01 | 1975-01-01 | £2.70 |
| 202 | Keren Gilfoyle | A Shadow on the Skin | | NOVEL | 074720764X | 1993-07-01 | 1993-08-19 | £16.99 |
| 203 | Richard Gill | Time Keepers | | COLLECTION | 0863034608 | 1989-01-01 | 1989-11-01 | £4.95 |
| 204 | Roy Gill | The Daemon Parallel | Cameron Duffy / Parallel | NOVEL | 9780863158698 | 2012-03-22 | 2012-03-22 | £5.99 |
| 205 | Roy Gill | Werewolf Parallel | Cameron Duffy / Parallel | NOVEL | 9781782500650 | 2014-03-20 | 2014-03-20 | £4.99 |
| 206 | Steven Gilligan | Alpha.one | | NOVEL | 0953765059 | 2002-01-01 | 2002-01-01 | £5.99 |
| 207 | Steven Gilligan | Elsewhere | | NOVEL | 0953765024 | 2002-01-01 | 2002-01-01 | £6.99 |
| 208 | Mike Gilliland | The Free | | NOVEL | None on record | 1986-01-01 | 2011-01-01 | £0.00 |
| 209 | Charlotte Perkins Gilman | The Yellow Wall-Paper | | COLLECTION | 9780141397412 | 2015-02-26 | 2015-02-26 | £0.80 |
| 210 | James Gilmer | Dawn of War: Chaos Rising No. 2 | | NOVEL | 9781849700245 | 2011-03-03 | 2011-03-03 | £7.99 |
| 211 | Lia Ginno | The Legends Saving the Rainforest Orchid | The Legends | NOVEL | 9780956091710 | 2009-06-01 | 2009-06-01 | £4.99 |
| 212 | Lia Ginno | The Legends and the Bible Code Quest | The Legends | NOVEL | 9780956091741 | 2011-10-06 | 2011-10-06 | £5.99 |
| 213 | Lia Ginno | The Legends and the Inca Crystals | The Legends | NOVEL | 9780956091727 | 2007-04-01 | 2012-06-15 | £5.99 |
| 214 | Leo Giroux, Jr. | Dark Ashram | | NOVEL | 0586205292 | 1991-03-01 | 1991-03-01 | £4.50 |
| 215 | Victor Gischler | Gestapo Mars | | NOVEL | 9781783297368 | 2015-09-22 | 2015-09-22 | £2.99 |
| 216 | Adele Olivia Gladwell | Blood & Roses: The Vampire in 19th Century Literature (Revised) | | ANTHOLOGY | 1840680075 | 1999-10-01 | 1999-10-01 | £11.95 |
| 217 | Steve Gladwin | The Seven | | NOVEL | 9781848517431 | 2013-10-31 | 2013-10-31 | £5.99 |
| 218 | Roderick Gladwish | To Stop a War | | NOVEL | 1858210194 | 1993-04-01 | 1993-04-01 | £13.50 |
| 219 | Edmund Glasby | Death After Death | | COLLECTION | 9780957296244 | 2016-01-01 | 2016-01-01 | £9.99 |
| 220 | John Glasby | Project Jove | | NOVEL | 9781444803440 | 1971-08-01 | 2010-08-01 | £15.85 |
| 221 | John Glasby | The Substance of a Shade: And Other Stories | | COLLECTION | 9781444819779 | 2014-05-01 | 2014-05-01 | £8.99 |
| 222 | John P. Gledhill | Battle for the Earth | | NOVEL | 9781846245862 | 2011-07-28 | 2011-07-28 | £17.99 |
| 223 | Debi Gliori | Witch Baby and Me | Witch Baby and Me | NOVEL | 9781407047812 | 2008-01-01 | 2009-07-15 | £3.99 |
| 224 | Debi Gliori | Witch Baby and Me After Dark | Witch Baby and Me | NOVEL | 9781407050720 | 2009-10-01 | 2010-06-05 | £3.99 |
| 225 | Debi Gliori | Witch Baby and Me At School | Witch Baby and Me | NOVEL | 9781407051154 | 2009-01-01 | 2009-11-10 | £4.49 |
| 226 | Debi Gliori | Witch Baby and Me On Stage | Witch Baby and Me | NOVEL | 9781409097167 | 2010-06-24 | 2010-06-24 | £3.49 |
| 227 | Xeno Glitz | Carpe Diem | | NOVEL | 9781848762145 | 2010-01-04 | 2010-01-04 | £8.99 |
| 228 | Xeno Glitz | Freqout | | NOVEL | 9781848760707 | 2009-02-16 | 2009-02-16 | £8.99 |
| 229 | Xeno Glitz | The Blood Purge | The Antichthon Trinity | NOVEL | 1906221073 | 2007-11-01 | 2007-11-01 | £7.99 |
| 230 | Julian Glover | Beowulf: An Adaptation | Beowulf: miscellaneous excerpts, sequels and alternative versions | NOVEL | 0862993377 | 1987-11-01 | 1987-11-01 | £14.95 |
| 231 | Sandra Glover | Face to Face | | NOVEL | 0552547468 | 2002-04-01 | 2002-04-01 | £4.99 |
| 232 | Sandra Glover | Identity | | NOVEL | 9781842709931 | 2010-03-04 | 2010-03-04 | £5.99 |
| 233 | Sandra Glover | The Girl Who Knew | | NOVEL | 0552546992 | 2000-01-01 | 2001-07-01 | £4.99 |
| 234 | Jane Godman | Otherworld Protector | Otherworld (Jane Godman) | NOVEL | 9781474036412 | 2015-11-19 | 2015-12-01 | £4.49 |
| 235 | Parke Godwin | Prince of Nowhere | ? | CHAPBOOK | 9781848632820 | 2011-12-01 | 2011-12-01 | £24.99 |
| 236 | Dallas Clive Goffin | Legends of Fogrophol | | COLLECTION | None on record | 1991-01-01 | 1991-01-01 | £1.80 |
| 237 | Nikolai Gogol | The Nose | | COLLECTION | 9780141397535 | 2015-02-26 | 2015-02-26 | £0.49 |
| 238 | Nikolai Gogol | The Overcoat | ? | CHAPBOOK | 9781909829039 | 2014-12-10 | 2015-04-27 | £15.99 |
| 239 | Namita Gokhale | The Book of Shadows | | NOVEL | 0349112312 | 1999-01-01 | 2001-04-05 | £6.99 |
| 240 | Christopher Golden | Zombie | | NOVEL | 9780748118298 | 2010-02-05 | 2010-02-05 | £5.99 |
| 241 | Pippa Goldschmidt | GM Fiction | | ANTHOLOGY | 9780955633010 | 2009-08-15 | 2009-08-15 | £9.99 |
| 242 | Pippa Goldschmidt | The Falling Sky | | NOVEL | 9781908754141 | 2013-04-08 | 2013-04-08 | £8.99 |
| 243 | Pippa Goldschmidt | The Need for Better Regulation of Outer Space | | COLLECTION | 9781910449134 | 2015-05-11 | 2015-05-11 | £8.99 |
| 244 | A. M. Goldsher | No Ordinary Girl | | NOVEL | 9780755386123 | 2010-11-25 | 2012-03-15 | £5.49 |
| 245 | Tony Gonzales | The Tabit Genesis | Tabit | NOVEL | 9780575093232 | 2015-06-01 | 2016-04-14 | £8.99 |
| 246 | Dan Gooch | Solomon Grundy | | NOVEL | 0349109109 | 1997-10-01 | 1997-10-01 | £9.99 |
| 247 | Harriet Goodchild | The Crooked Path | After the Ruin | NOVEL | 9780997118810 | 2016-09-20 | 2016-09-20 | £8.99 |
| 248 | Terrence J. Goodchild | The Joker | | NOVEL | 9780956036957 | 2012-08-10 | 2012-08-10 | £7.99 |
| 249 | Philip Gooden | The Open Door and Other Ghost Stories | | ANTHOLOGY | 0753807432 | 1999-09-01 | 1999-09-01 | £4.99 |
| 250 | Martin Goodman (UK) | Forever Konrad | | NOVEL | 9781786361844 | 2017-10-01 | 2017-10-01 | £20.00 |
| 251 | Meri Goodman | Journey to Atlantis with a Priestess | | NOVEL | 9781844267347 | 2009-12-10 | 2009-12-10 | £9.99 |
| 252 | Harriet Goodwin | Gravenhunger | | NOVEL | 9781847152916 | 2011-04-04 | 2012-04-01 | £5.99 |
| 253 | Harriet Goodwin | The Hex Factor | | NOVEL | 9781847154163 | 2012-08-01 | 2012-12-01 | £5.99 |
| 254 | Andrew Goodwyn | Fantasy Stories | | ANTHOLOGY | 0198312628 | 1991-01-01 | 1991-03-01 | £3.95 |
| 255 | Andrew Goodwyn | Science Fiction Stories | | ANTHOLOGY | 019831261X | 1991-01-01 | 1991-03-01 | £3.95 |
| 256 | Kathleen Ann Goonan | Angels and You Dogs | | COLLECTION | 9781848633322 | 2012-05-01 | 2012-05-01 | £39.99 |
| 257 | Nadine Gordimer | July's People | | NOVEL | 9781408832967 | 1981-01-01 | 2012-03-15 | £7.99 |
| 258 | Elizabeth Gordon | Flower Children | | NOVEL | 9781557090867 | 2008-02-21 | 2008-02-21 | £9.99 |
| 259 | Frances Gordon | Blood Ritual | | NOVEL | 0747248079 | 1994-01-01 | 1995-05-01 | £5.99 |
| 260 | Frances Gordon | Changeling | | NOVEL | 0747219923 | 1998-01-01 | 1998-01-01 | £17.99 |
| 261 | Frances Gordon | The Burning Altar | | NOVEL | 0747216126 | 1996-07-01 | 1996-07-01 | £16.99 |
| 262 | Frances Gordon | The Devil's Piper | | NOVEL | 0747213569 | 1995-10-01 | 1995-10-01 | £16.99 |
| 263 | Frances Gordon | Thorn: An Immortal Tale | | NOVEL | 0747254850 | 1997-05-01 | 1997-10-01 | £5.99 |
| 264 | Frances Gordon | Wildwood | | NOVEL | 0747221774 | 1999-01-01 | 1999-01-01 | £16.99 |
| 265 | Giles Gordon | A Book of Contemporary Nightmares | | ANTHOLOGY | 0722139683 | 1977-01-01 | 1978-01-01 | £0.85 |
| 266 | Giles Gordon | Prevailing Spirits | | ANTHOLOGY | 0241894034 | 1976-01-01 | 1976-01-01 | £3.50 |
| 267 | Giles Gordon | Prevailing Spirits: A Book of Scottish Ghost Stories | | ANTHOLOGY | 0586046348 | 1986-01-01 | 1986-01-01 | £2.50 |
| 268 | Giles Gordon | Scottish Ghost Stories | | ANTHOLOGY | 1859584837 | 1996-01-01 | 1996-01-01 | £5.99 |
| 269 | Giles Gordon | Selected Ghost Stories | | ANTHOLOGY | 0747529140 | 1996-11-01 | 1996-11-01 | £10.95 |
| 270 | John Gordon | Fen Runners | | NOVEL | 9781444000412 | 2009-02-05 | 2009-08-20 | £4.49 |
| 271 | John Gordon | Ride the Wind | Jonk & Bill | NOVEL | 0370312791 | 1989-02-01 | 1989-02-01 | £7.95 |
| 272 | John Gordon | Skinners | Point Horror Unleashed | NOVEL | 0439012155 | 1999-10-01 | 1999-10-01 | £3.99 |
| 273 | John Gordon | The Burning Baby and Other Ghosts | | COLLECTION | 0744530806 | 1992-01-01 | 1993-06-01 | £2.99 |
| 274 | John Gordon | The Flesh Eater | | NOVEL | 0744559030 | 1998-01-01 | 1998-04-01 | £9.99 |
| 275 | John Gordon | The Quelling Eye | | NOVEL | 0006728413 | 1986-09-01 | 1988-04-01 | £1.95 |
| 276 | Ray Gordon | Unearthly Desires | | NOVEL | 0352340363 | 2006-06-08 | 2006-06-08 | £6.99 |
| 277 | Stuart Gordon | Archon! | Watchers (Stuart Gordon) | NOVEL | 035614335X | 1987-08-01 | 1987-08-01 | £11.95 |
| 278 | Stuart Gordon | Suaine and the Crow-God | | NOVEL | 0450023648 | 1975-01-01 | 1975-01-01 | £2.95 |
| 279 | Stuart Gordon | The Eyes trilogy | Eyes (Stuart Gordon) | OMNIBUS | 0283984295 | 1978-02-01 | 1978-02-01 | £5.95 |
| 280 | Stuart Gordon | The Hidden World | Watchers (Stuart Gordon) | NOVEL | 0356154211 | 1988-04-01 | 1988-04-01 | £12.95 |
| 281 | Stuart Gordon | The Mask | Watchers (Stuart Gordon) | NOVEL | 0708883249 | 1990-03-01 | 1990-03-01 | £3.50 |
| 282 | Rhett Goreman | Escaping the Sun | | NOVEL | 9780953338856 | 2013-12-17 | 2014-07-12 | £1.99 |
| 283 | Ed Gorman | Blood Red Moon | | NOVEL | 0747245975 | 1994-01-01 | 1995-01-01 | £4.99 |
| 284 | Ed Gorman | Cold Blue Midnight | | NOVEL | 0747211418 | 1995-01-01 | 1995-01-01 | £16.99 |
| 285 | Ed Gorman | Eye of the Beholder and Other Stories | | COLLECTION | 0953044920 | 1998-03-01 | 1998-03-01 | £15.00 |
| 286 | Ed Gorman | The Collected Ed Gorman, Volume One: Out There in the Darkness | | COLLECTION | 9781905834150 | 2007-03-01 | 2007-03-01 | £75.00 |
| 287 | Ed Gorman | The Collected Ed Gorman, Volume Two: The Moving Coffin | | COLLECTION | 9781905834150 | 2007-03-01 | 2007-03-01 | £75.00 |
| 288 | Sharon Gosling | Wild City | Wolfblood | NOVEL | 9781848125476 | 2016-05-05 | 2016-05-05 | £5.99 |
| 289 | Sharon Gosling | Wolves Among Us | Wolfblood | NOVEL | 9781848125445 | 2015-12-31 | 2015-12-31 | £4.07 |
| 290 | James Goss | Almost Perfect | Torchwood | NOVEL | 9781409072980 | 2008-10-16 | 2013-10-04 | £4.49 |
| 291 | James Goss | Bad Blood | Being Human | NOVEL | 9781409071006 | 2010-02-04 | 2010-02-04 | £4.49 |
| 292 | James Goss | Dead of Winter | Doctor Who New Series | NOVEL | 9781849909075 | 2011-04-28 | 2015-02-12 | £7.99 |
| 293 | James Goss | First Born | Torchwood | NOVEL | 9781446417096 | 2011-07-21 | 2011-07-21 | £4.49 |
| 294 | James Goss | Risk Assessment | Torchwood | NOVEL | 9781409071839 | 2009-10-01 | 2010-06-30 | £4.49 |
| 295 | James Goss | The Pirate Planet | Doctor Who Universe | NOVEL | 9781849906784 | 2017-01-05 | 2018-02-01 | £7.99 |
| 296 | Ron Goulart | Flux and The Tin Angel | | OMNIBUS | 0860000923 | 1978-11-01 | 1978-11-01 | £4.95 |
| 297 | Korin Gould | Cellophane Friends | | NOVEL | 9780980740011 | 2011-02-01 | 2011-02-01 | £9.99 |
| 298 | L. J. Goulding | Animus Malorum | ? | CHAPBOOK | 9781782512325 | 2013-10-31 | 2013-10-31 | £1.99 |
| 299 | L. J. Goulding | Heloth | ? | CHAPBOOK | 9781785725494 | 2017-02-06 | 2017-02-06 | £2.49 |
| 300 | L. J. Goulding | Kaldor Draigo: Knight of Titan | ? | CHAPBOOK | 9781782513599 | 2013-12-12 | 2013-12-12 | £0.99 |
| 301 | L. J. Goulding | Last Watch | ? | CHAPBOOK | 9780857879042 | 2012-12-09 | 2012-12-09 | £0.99 |
| 302 | L. J. Goulding | Mortarion's Heart | ? | CHAPBOOK | None on record | 2017-10-09 | 2017-10-09 | £2.49 |
| 303 | L. J. Goulding | Terminal Velocity | ? | CHAPBOOK | 9781785725975 | 2017-04-03 | 2017-04-03 | £0.99 |
| 304 | L. J. Goulding | The Aegidan Oath | ? | CHAPBOOK | 9781785722660 | 2016-12-17 | 2016-12-17 | £1.99 |
| 305 | L. J. Goulding | The Ghost Halls | ? | CHAPBOOK | 9781782512738 | 2013-09-20 | 2013-09-20 | £0.99 |
| 306 | L. J. Goulding | The Great Maw | ? | CHAPBOOK | 9781782516019 | 2014-06-28 | 2014-06-28 | £1.99 |
| 307 | L. J. Goulding | The Last Council | ? | CHAPBOOK | 9781780307794 | 2018-12-12 | 2018-12-12 | £2.49 |
| 308 | L. J. Goulding | The Lords of Borsis | ? | CHAPBOOK | 9781782518198 | 2015-01-26 | 2015-01-26 | £1.99 |
| 309 | L. J. Goulding | The Shadow of the Beast | ? | CHAPBOOK | 9781785722974 | 2015-08-24 | 2015-08-24 | £2.49 |
| 310 | L. J. Goulding | The Word of the Silent King | ? | CHAPBOOK | 9781782515739 | 2014-12-13 | 2014-12-13 | £2.49 |
| 311 | Laurie Goulding | Shattered Legions | The Horus Heresy | ANTHOLOGY | 9781785726064 | 2017-04-15 | 2017-04-15 | £9.99 |
| 312 | Laurie Goulding | The Burden of Loyalty | The Horus Heresy | ANTHOLOGY | 9781784969950 | 2018-02-03 | 2019-08-08 | £7.99 |
| 313 | Laurie Goulding | The Weakness of Others | ? | CHAPBOOK | 9780857876461 | 2012-03-28 | 2012-03-28 | £0.99 |
| 314 | Candy Gourlay | Shine | | NOVEL | 9781409046851 | 2013-08-29 | 2013-08-29 | £6.99 |
| 315 | Sarah Govett | Escape | The Territory (Sarah Govett) | NOVEL | 9781910080467 | 2016-10-13 | 2016-10-13 | £7.99 |
| 316 | Sarah Govett | The Territory | The Territory (Sarah Govett) | NOVEL | 9781910080184 | 2015-05-14 | 2015-05-14 | £7.99 |
| 317 | Mick Gowar | Twisted Circuits: A Sinister Collection of Hi-tech Tales | | ANTHOLOGY | 0099434008 | 1987-01-01 | 1987-01-01 | £1.75 |
| 318 | Stefan Grabinski | In Sarah's House | | COLLECTION | 9780955728532 | 2007-11-01 | 2007-11-01 | £7.99 |
| 319 | Stefan Grabinski | On the Hill of Roses | | COLLECTION | 9781908876034 | 2012-06-30 | 2012-06-30 | £26.00 |
| 320 | Stefan Grabinski | The Dark Domain | | COLLECTION | 9781909232044 | 1993-01-01 | 2019-01-01 | £8.99 |
| 321 | Julien Gracq | A Dark Stranger | | NOVEL | 9781901285826 | 2009-05-07 | 2009-05-07 | £12.00 |
| 322 | David Graham (I) | The Knowing | The Screaming | NOVEL | 9781911331094 | 2017-03-10 | 2017-03-10 | £8.99 |
| 323 | David Graham (I) | The Screaming | The Screaming | NOVEL | 9781784559564 | 2015-07-31 | 2015-07-31 | £6.99 |
| 324 | Ian Graham | The Path of the Hawk | Monument | OMNIBUS | 9780356506937 | 2016-09-22 | 2016-09-22 | £9.99 |
| 325 | Ian Graham | The Path of the Hawk: Book One | Monument | NOVEL | 9780356506937 | 2016-01-26 | 2016-09-22 | £9.99 |
| 326 | Ian Graham | The Path of the Hawk: Book Two | Monument | NOVEL | 9780356506937 | 2016-02-23 | 2016-09-22 | £9.99 |
| 327 | Kendal Grahame | Fallen Angels | | NOVEL | 0352329343 | 1994-07-01 | 1994-07-01 | £4.99 |
| 328 | Juliet Grames | The Seven or Eight Deaths of Stella Fortuna | | NOVEL | 9781473686298 | 2020-04-02 | 2020-04-02 | £8.99 |
| 329 | Anthony Grant | The Mutant | | NOVEL | 0709181485 | 1980-01-01 | 1980-01-01 | £5.25 |
| 330 | David Grant | Eg and Me | | NOVEL | 9780435046033 | 2011-05-19 | 2011-05-19 | £7.25 |
| 331 | Gary Grant | Supernatural Tales 1 | | ANTHOLOGY | 0704311364 | 1974-01-01 | 1974-01-01 | £0.20 |
| 332 | Gary Grant | Supernatural Tales 2 | | ANTHOLOGY | 0704311372 | 1974-01-01 | 1974-01-01 | £0.20 |
| 333 | Graeme Grant | Ghosts from the Past | Randall and Hopkirk (deceased) | NOVEL | 0752223461 | 2000-03-01 | 2000-03-01 | £5.99 |
| 334 | Gwen Grant | Bonny Starr and the Riddles of Time | | NOVEL | 0434941352 | 1987-06-01 | 1987-06-01 | £6.95 |
| 335 | Helen Grant | Wish Me Dead | | NOVEL | 9780141363028 | 2011-06-02 | 2015-03-05 | £7.99 |
| 336 | John Grant | Albion | Albion (Grant) | NOVEL | 0747203512 | 1991-11-01 | 1991-11-01 | £14.95 |
| 337 | John Grant | Aries 1 | | ANTHOLOGY | 0715377779 | 1979-01-01 | 1979-01-01 | £4.95 |
| 338 | John Grant | New Writings in the Fantastic | | ANTHOLOGY | 095544523X | 2007-09-30 | 2007-09-30 | £12.99 |
| 339 | John Grant | The City in These Pages | ? | CHAPBOOK | 9781905834662 | 2008-11-01 | 2008-11-01 | £25.00 |
| 340 | John Grant | The Far-Enough Window or The Reclaiming of Fairyland | | NOVEL | 1904224792 | 2002-10-01 | 2002-10-01 | £9.80 |
| 341 | John Grant | The Hundredfold Problem | Judge Dredd (Virgin) | NOVEL | 0352329424 | 1994-08-01 | 1994-08-01 | £4.99 |
| 342 | John Grant | The Legends of Lone Wolf Omnibus | The Legends of Lone Wolf | OMNIBUS | 0099219719 | 1992-11-01 | 1992-11-01 | £5.99 |
| 343 | John Grant | The Lonely Hunter | ? | CHAPBOOK | 9781848632073 | 2012-04-01 | 2012-04-01 | £24.99 |
| 344 | John Grant | The Lorestone of Varetta | The Legends of Lone Wolf | NOVEL | 0099152010 | 1994-02-01 | 1994-02-01 | £3.99 |
| 345 | John Grant | The Rotting Land | The Legends of Lone Wolf | NOVEL | 0099152215 | 1995-12-01 | 1995-12-01 | £3.99 |
| 346 | John Grant | The Secret of Kazan-Oud | The Legends of Lone Wolf | NOVEL | 0099152118 | 1994-01-01 | 1994-06-01 | £3.99 |
| 347 | John Grant | The Tellings | The Legends of Lone Wolf | NOVEL | 009915191X | 1993-05-01 | 1993-05-01 | £3.99 |
| 348 | John Grant | The World | Albion (Grant) | NOVEL | 0747206104 | 1992-12-01 | 1992-12-01 | £15.99 |
| 349 | Rob Grant | Backwards | Red Dwarf | NOVEL | 9780241988053 | 1996-05-01 | 2020-02-06 | £8.99 |
| 350 | Rob Grant | Colony | | NOVEL | 0670896829 | 2000-11-01 | 2000-11-01 | £9.99 |
| 351 | Rob Grant | Fat | | NOVEL | 9780575127616 | 2006-12-01 | 2011-09-29 | £5.49 |
| 352 | Rob Grant | Incompetence | | NOVEL | 9780575127609 | 2003-12-01 | 2011-09-29 | £5.49 |
| 353 | Liza Granville | The Crack of Doom | | NOVEL | 1904853390 | 2006-09-15 | 2006-09-15 | £13.99 |
| 354 | Liza Granville | The Tor | | NOVEL | 9781906609221 | 2010-06-08 | 2010-06-08 | £6.99 |
| 355 | Liza Granville | Until the Skies Fall | | NOVEL | 9781906609009 | 2009-02-19 | 2009-02-19 | £8.99 |
| 356 | Preston Grassmann | The Unquiet Dreamer: A Tribute to Harlan Ellison | | ANTHOLOGY | 9781786363404 | 2019-08-01 | 2019-08-01 | £60.00 |
| 357 | Ryan Graudin | The Walled City | | NOVEL | 9781780622019 | 2014-11-06 | 2014-11-06 | £4.99 |
| 358 | Kim Gravell | Child of the Covenant | Dark Places (Kim Gravell) | NOVEL | 9781784625726 | 2015-01-28 | 2015-05-27 | £2.99 |
| 359 | Kim Gravell | The Demon's Call | Dark Places (Kim Gravell) | NOVEL | 9781784627225 | 2014-05-28 | 2014-07-29 | £2.99 |
| 360 | Fred Graver | Journey to Stonehenge | | NOVEL | None on record | 1984-01-01 | 1984-01-01 | £1.95 |
| 361 | Alasdair Gray | Mavis Belfrage: A Love Story and Four Shorter Tales | | COLLECTION | 0747530890 | 1996-01-01 | 1997-04-01 | £5.99 |
| 362 | Alasdair Gray | McGrotty and Ludmilla, or, The Harbringer Report | | NOVEL | 187253600X | 1990-01-01 | 1990-01-01 | £5.00 |
| 363 | Alasdair Gray | Unlikely Stories, Mostly | | COLLECTION | 9781847675026 | 1983-01-01 | 2010-07-01 | £8.99 |
| 364 | Caroline Gray | Death of the Devil | | NOVEL | 0727846981 | 1994-11-01 | 1994-11-01 | £15.99 |
| 365 | Caroline Gray | Sword of the Devil | | NOVEL | 0727846221 | 1994-05-01 | 1994-05-01 | £15.99 |
| 366 | Clio Gray | Envoy of the Black Pine | | NOVEL | 9780755392032 | 2008-08-01 | 2012-03-29 | £5.49 |
| 367 | Jane Gray | The Bitti Chai | | NOVEL | 9781906236731 | 2011-10-06 | 2011-10-06 | £10.99 |
| 368 | Jennie Gray | Tales My Mother Never Told Me | | COLLECTION | 1874100047 | 1992-01-01 | 1992-01-01 | £7.00 |
| 369 | Julia Gray | Alyssa's Ring | | NOVEL | 1841491462 | 2002-12-01 | 2005-01-01 | £7.99 |
| 370 | Julia Gray | Fire Music | | NOVEL | 1857237358 | 1999-01-01 | 1999-01-01 | £6.99 |
| 371 | Julia Gray | Ice Mage | | NOVEL | 1857236890 | 1998-12-01 | 1998-12-01 | £6.99 |
| 372 | Julia Gray | Isle of the Dead | | NOVEL | 1857239784 | 2000-01-01 | 2000-01-01 | £6.99 |
| 373 | Julia Gray | The Crystal Desert | | NOVEL | 1841490938 | 2001-12-01 | 2005-01-01 | £7.99 |
| 374 | Julia Gray | The Dark Moon | | NOVEL | 1857239938 | 2000-09-01 | 2004-01-01 | £6.99 |
| 375 | Julia Gray | The Jasper Forest | | NOVEL | 1841490571 | 2001-06-01 | 2005-01-01 | £7.99 |
| 376 | Julia Gray | The Otherlife | | NOVEL | 9781448188451 | 2016-07-07 | 2016-07-07 | £4.99 |
| 377 | Julia Gray | The Red Glacier | | NOVEL | 1841491233 | 2002-01-01 | 2005-01-01 | £7.99 |
| 378 | Keith Gray | From Blood: Two Brothers | | NOVEL | 0749727683 | 1997-04-01 | 1997-04-01 | £4.99 |
| 379 | Keith Gray | Next | | ANTHOLOGY | 9781849393003 | 2012-06-07 | 2012-06-07 | £6.99 |
| 380 | Keith Gray | The Fearful | | NOVEL | 9781909531659 | 2005-04-01 | 2016-11-26 | £7.99 |
| 381 | Kes Gray | Cowcumbers, Pipplewaks and Altigators | Nelly the Monster Sitter | NOVEL | 0340884339 | 2005-05-01 | 2005-05-01 | £4.99 |
| 382 | Kes Gray | Grerks, Squurms and Water Greeps | Nelly the Monster Sitter | NOVEL | 0340884320 | 2005-01-04 | 2005-01-04 | £4.99 |
| 383 | Kes Gray | Huffaluks, Muggots and Thermitts | Nelly the Monster Sitter | NOVEL | 0340884347 | 2005-07-01 | 2005-07-01 | £4.99 |
| 384 | Kes Gray | Polarbores, Digdiggs and Dendrilegs | Nelly the Monster Sitter | NOVEL | 9780340931912 | 2007-06-01 | 2007-06-01 | £5.99 |
| 385 | Kes Gray | Ultravores, Rimes and Wattwatts | Nelly the Monster Sitter | NOVEL | 9780340931929 | 2008-07-01 | 2008-07-01 | £5.99 |
| 386 | Muriel Gray | The Ancient | | NOVEL | 9780008158262 | 2001-05-01 | 2015-12-03 | £8.99 |
| 387 | Nicholas Stuart Gray | The Edge of Evening | | COLLECTION | 0571107958 | 1976-01-01 | 1976-01-01 | £2.50 |
| 388 | Pat Gray | Mr. Narrator | | NOVEL | 0946626316 | 1989-01-01 | 1990-01-01 | £4.95 |
| 389 | Rosemary Gray | Irish Ghost Stories | | ANTHOLOGY | 9781840226607 | 2011-05-15 | 2011-05-01 | £2.99 |
| 390 | Rosemary Gray | Scottish Ghost Stories | | ANTHOLOGY | 9781840221688 | 2009-02-05 | 2009-02-01 | £2.99 |
| 391 | Serena Gray | The Alien's Survival Manual: An Outsider's Guide to the Planet Earth | | NOVEL | 0708853269 | 1992-02-01 | 1992-02-01 | £3.99 |
| 392 | Helen Greathead | Spooky Devon | | NOVEL | 9781849931908 | 2011-07-16 | 2011-07-16 | £4.99 |
| 393 | Margaret Greaves | The Abbotsbury Ring | | NOVEL | 0416866808 | 1979-01-01 | 1979-01-01 | £2.95 |
| 394 | Amy Grech | Blanket of White | | COLLECTION | 9781615720170 | 2009-09-01 | 2009-09-01 | £8.75 |
| 395 | Maurycy Greczko | Tajemnice Mollitrii | | NOVEL | 9780955584961 | 2012-01-31 | 2012-01-31 | £10.00 |
| 396 | Catherine Green | Love Hurts | Redcliffe | NOVEL | 9781908200242 | 2011-06-29 | 2011-06-29 | £8.99 |
| 397 | Catherine Green | Love Redeems | Redcliffe | NOVEL | 9781909220133 | 2013-02-12 | 2013-02-12 | £8.99 |
| 398 | Eliza Green | Altered Reality | Exilon 5 | NOVEL | None on record | 2013-12-13 | 2013-12-13 | £3.80 |
| 399 | Eliza Green | Crimson Dawn | Exilon 5 | NOVEL | None on record | 2014-10-03 | 2014-10-03 | £3.80 |
| 400 | Eliza Green | Echoes of Earth | ? | CHAPBOOK | None on record | 2016-04-19 | 2016-04-19 | £1.51 |
| 401 | Eliza Green | Isobel | ? | CHAPBOOK | None on record | 2017-10-10 | 2017-10-10 | £2.25 |
| 402 | Eliza Green | Marcus | ? | CHAPBOOK | None on record | 2017-11-07 | 2017-11-07 | £2.27 |
| 403 | Eliza Green | New Origin | ? | CHAPBOOK | None on record | 2016-04-19 | 2016-04-19 | £1.51 |
| 404 | Eliza Green | Quantum Silence | Exilon 5 | NOVEL | None on record | 2017-05-01 | 2017-05-01 | £4.43 |
| 405 | George Dawes Green | The Caveman | | NOVEL | 0751507229 | 1994-01-01 | 1995-03-01 | £4.99 |
| 406 | George Green | Hound | | NOVEL | 0553815342 | 2003-08-01 | 2004-08-01 | £6.99 |
| 407 | J. J. Green | Death Switch | ? | CHAPBOOK | 9781515057529 | 2015-07-17 | 2015-07-17 | £7.72 |
| 408 | J. J. Green | Night of Flames | ? | CHAPBOOK | None on record | 2018-01-01 | 2018-01-01 | £0.99 |
| 409 | J. J. Green | Starbound | ? | CHAPBOOK | None on record | 2017-02-28 | 2017-02-28 | £0.99 |
| 410 | Janet Green | My Turn Now | | NOVEL | 0363000275 | 1971-01-01 | 1971-01-01 | £1.50 |
| 411 | Jonathan Green | But Dust in the Wind | ? | CHAPBOOK | 9780857872050 | 2016-11-15 | 2016-11-15 | £2.49 |
| 412 | Jonathan Green | Red-Handed | ? | CHAPBOOK | 9781849973038 | 2011-10-05 | 2011-10-05 | £1.78 |
| 413 | Jonathan Green | Shakespeare vs. Cthulhu | | ANTHOLOGY | 9781909679856 | 2016-08-02 | 2016-08-02 | £19.99 |
| 414 | Jonathan Green | The Armageddon Omnibus | | COLLECTION | 9781844169238 | 2011-02-01 | 2011-02-01 | £20.00 |
| 415 | Jonathan Green | The Horror of Howling Hill | Decide Your Destiny | NOVEL | 9781856131599 | 2008-03-06 | 2008-03-01 | £4.99 |
| 416 | Kate Green | Shattered Moon | Shattered Moon | NOVEL | 0006172903 | 1986-07-01 | 1986-07-01 | £2.95 |
| 417 | Kay Green | Jung's People | | COLLECTION | 0954374762 | 2004-02-01 | 2004-02-01 | £5.00 |
| 418 | Nina Green | Memories of a Moon Map: The Extraordinary Adventures of an English Setter Pack | | NOVEL | 9780953053834 | 2010-04-25 | 2010-04-25 | £6.99 |
| 419 | Paul Green (I) | Beneath the Pleasure Zones: The Rupture | | NOVEL | 9781906958589 | 2014-01-30 | 2014-01-30 | £9.99 |
| 420 | Simon R. Green | Damned If You Do in the Nightside | Nightside Omnibus | OMNIBUS | 9781906735623 | 2010-02-15 | 2010-02-15 | £7.99 |
| 421 | Simon R. Green | Dead Man Walking | Ishmael Jones | NOVEL | 9781847517258 | 2016-05-31 | 2017-02-28 | £12.99 |
| 422 | Simon R. Green | Haunting the Nightside | Nightside Omnibus | OMNIBUS | 9781844166381 | 2008-09-01 | 2008-09-01 | £7.99 |
| 423 | Simon R. Green | Into the Nightside | Nightside Omnibus | OMNIBUS | 9781844166428 | 2008-08-01 | 2008-09-01 | £7.99 |
| 424 | Simon R. Green | Just Another Judgement Day in the Nightside | Nightside Omnibus | OMNIBUS | 9781907519024 | 2010-12-09 | 2010-12-09 | £7.99 |
| 425 | Simon R. Green | The Dark Heart of the Nightside | Nightside Omnibus | OMNIBUS | 9781844166350 | 2008-01-01 | 2008-01-01 | £7.99 |
| 426 | Simon R. Green | The Pit of Despair | ? | CHAPBOOK | 9781848633087 | 2012-09-01 | 2012-09-01 | £24.99 |
| 427 | Simon R. Green | Very Important Corpses | Ishmael Jones | NOVEL | 9780727895967 | 2016-11-30 | 2017-09-29 | £22.99 |
| 428 | Sophie Green | Ghostcatcher | Potkin and Stubbs | NOVEL | 9781848128590 | 2020-03-05 | 2020-03-05 | £6.99 |
| 429 | Stephanie Green | The Triple Spiral | | NOVEL | 0744508142 | 1989-06-01 | 1989-06-01 | £9.95 |
| 430 | Robert Greenberger | Peace | ? | CHAPBOOK | 9781448175338 | 2013-01-10 | 2013-01-10 | £0.99 |
| 431 | Robert Greenberger | Redemption | ? | CHAPBOOK | 9781448175352 | 2013-01-31 | 2013-01-31 | £0.99 |
| 432 | Graham Greene | Shades of Greene: The Televised Stories of Graham Greene | | COLLECTION | 0140040234 | 1977-01-01 | 1977-01-01 | £ |
| 433 | Susan Greenfield | 2121: A Tale from the Next Century | | NOVEL | 9781781853559 | 2013-07-01 | 2013-07-01 | £4.99 |
| 434 | Terry Greenhough | The Wandering Worlds | | NOVEL | 0450031217 | 1976-01-01 | 1979-02-01 | £0.85 |
| 435 | Terry Greenhough | Thought World | | NOVEL | 0450031977 | 1977-01-01 | 1977-01-01 | £3.95 |
| 436 | Terry Greenhough | Thoughtworld | | NOVEL | 0450036405 | 1978-11-01 | 1978-11-01 | £0.85 |
| 437 | Terry Greenhough | Time and Timothy Grenville | | NOVEL | 0450028127 | 1975-06-01 | 1976-05-01 | £0.60 |
| 438 | Colin Greenland | Daybreak on a Different Mountain | Daybreak | NOVEL | 9780575127517 | 1984-12-01 | 2013-06-27 | £4.99 |
| 439 | Colin Greenland | Finding Helen | | NOVEL | 9781448111152 | 2003-03-01 | 2012-02-29 | £6.99 |
| 440 | Colin Greenland | Other Voices | Daybreak | NOVEL | 9780575127548 | 1988-03-01 | 2013-05-27 | £2.99 |
| 441 | Colin Greenland | The Hour of the Thin Ox | Daybreak | NOVEL | 9780575127531 | 1987-03-01 | 2013-09-30 | £2.99 |
| 442 | Colin Greenland | The Plenty Principle | Plenty / Tabitha Jute | COLLECTION | 9780575127579 | 1997-01-01 | 2013-05-27 | £4.99 |
| 443 | Elizabeth Greenwood | Utopia 2000 | | NOVEL | 0863329349 | 1994-08-01 | 1994-08-01 | £14.95 |
| 444 | Gary Greenwood | Jigsaw Men | ? | CHAPBOOK | 1902880781 | 2004-03-01 | 2004-03-01 | £25.00 |
| 445 | Gary Greenwood | Kingston to Cable | | NOVEL | 9781906864217 | 2010-09-26 | 2010-09-26 | £12.00 |
| 446 | Gary Greenwood | The Dreaming Pool | | NOVEL | 0953146871 | 1998-10-01 | 1998-10-01 | £4.99 |
| 447 | John Greenwood | There Are Now a Billion Flowers | | COLLECTION | 0953765075 | 2002-10-01 | 2002-10-01 | £5.99 |
| 448 | Kenneth Gregory | The Polaris Whisper | | NOVEL | 9780856409127 | 2013-10-03 | 2013-10-03 | £8.99 |
| 449 | Stephen Gregory | Plague of Gulls | | NOVEL | 9781786363282 | 2018-07-01 | 2018-07-01 | £30.00 |
| 450 | Francis Greig | The Bite and Other Apocryphal Tales | | COLLECTION | 022401904X | 1981-01-01 | 1981-01-01 | £5.95 |
| 451 | Lois H. Gresh | Dark Fusions: Where Monsters Lurk! | | ANTHOLOGY | 9781848636743 | 2013-10-01 | 2013-10-01 | £28.00 |
| 452 | Lois H. Gresh | Innsmouth Nightmares | | ANTHOLOGY | 9781848639041 | 2015-07-01 | 2015-07-01 | £30.00 |
| 453 | Michael Grey (I) | The Room | | NOVEL | 0552135593 | 1990-07-01 | 1990-07-01 | £2.99 |
| 454 | S. L. Grey | The Ward | | NOVEL | 9780857895875 | 2012-10-01 | 2012-10-01 | £6.49 |
| 455 | S. L. Grey | Under Ground | | NOVEL | 9781447266457 | 2015-07-16 | 2016-02-25 | £7.99 |
| 456 | John Gribbin | Don't Look Back | | COLLECTION | 9781911409182 | 2017-05-05 | 2017-05-05 | £2.99 |
| 457 | John Gribbin | Innervisions | | NOVEL | 9780575132429 | 1993-05-01 | 2013-04-23 | £4.99 |
| 458 | John Gribbin | Ragnarok | | NOVEL | 9780575132290 | 1991-10-01 | 2012-12-01 | £4.99 |
| 459 | John Gribbin | Reunion | Double Planet | NOVEL | 9780575132412 | 1991-06-01 | 2012-12-21 | £4.99 |
| 460 | John Gribbin | The Alice Encounter | ? | CHAPBOOK | 9781848631373 | 2011-02-01 | 2011-02-01 | £24.99 |
| 461 | John Gribbin | Timeswitch | | NOVEL | 9781906301620 | 2009-12-01 | 2009-12-01 | £49.99 |
| 462 | Brian Griffin | The OMEGA Project | | NOVEL | 0709168373 | 1978-01-01 | 1978-01-01 | £3.95 |
| 463 | David John Griffin | Infinite Rooms | | NOVEL | 9781910692608 | 2016-06-16 | 2016-06-16 | £8.99 |
| 464 | Clem Griffith | Four Thaumastic Tales | | COLLECTION | 1872080405 | 1989-12-01 | 1989-12-01 | £6.95 |
| 465 | George Griffith | The Raid of "Le Vengeur" and Other Stories | | COLLECTION | None on record | 1974-10-01 | 1974-10-01 | £2.50 |
| 466 | Jay Griffiths | Twilight | ? | CHAPBOOK | 9781999306502 | 2018-10-31 | 2018-10-31 | £7.50 |
| 467 | K. A. Griffiths | The Bedlam Devils | | NOVEL | 9781780032689 | 2011-12-10 | 2011-12-10 | £6.99 |
| 468 | Matthew Griffiths | The Weather on Versimmon | Professor Bernice Summerfield | NOVEL | 9781844356188 | 2012-02-29 | 2012-02-29 | £14.99 |
| 469 | W. G. Griffiths | Talons | | NOVEL | 9780938467588 | 2012-10-15 | 2012-10-15 | £12.02 |
| 470 | Brothers Grimm | Fairy Tales | | COLLECTION | 9781787552876 | 2019-06-24 | 2019-06-24 | £20.00 |
| 471 | Brothers Grimm | Selected Tales | | COLLECTION | 9780241245057 | 2004-01-01 | 2015-07-02 | £3.99 |
| 472 | Brothers Grimm | The Robber Bridegroom | | COLLECTION | 9780141398587 | 2015-02-26 | 2015-03-19 | £0.49 |
| 473 | Johann Jakob Christoffel von Grimmelshausen | Tearaway | | NOVEL | 1903517184 | 2003-04-01 | 2003-04-01 | £6.99 |
| 474 | Peter Grimwade | Mawdryn Undead | Doctor Who Target novelizations | NOVEL | 0491030916 | 1983-08-01 | 1983-08-01 | £5.50 |
| 475 | Peter Grimwade | Planet of Fire | Doctor Who Target novelizations | NOVEL | 0491033230 | 1984-01-01 | 1984-10-01 | £5.95 |
| 476 | Peter Grimwade | Robot | | NOVEL | 0352320362 | 1987-07-01 | 1987-07-01 | £2.25 |
| 477 | Peter Grimwade | Time-Flight | Doctor Who Target novelizations | NOVEL | 0491031408 | 1983-01-01 | 1983-01-01 | £5.25 |
| 478 | Jon Courtenay Grimwood | Arabesk | Arabesk | OMNIBUS | 9780575085701 | 2007-10-01 | 2008-09-18 | £7.99 |
| 479 | Jon Courtenay Grimwood | Lucifer's Dragon | neoAddix | NOVEL | 0743478274 | 1998-01-01 | 2004-03-01 | £6.99 |
| 480 | Jon Courtenay Grimwood | neoAddix | neoAddix | NOVEL | 0340674725 | 1997-01-01 | 1997-01-01 | £5.99 |
| 481 | Jon Courtenay Grimwood | reMix | neoAddix | NOVEL | 0671022229 | 1999-04-01 | None | £6.99 |
| 482 | Terry Grimwood | Bloody War | | NOVEL | 9781908125033 | 2011-04-16 | 2011-04-16 | £8.99 |
| 483 | Terry Grimwood | There Is a Way to Live Forever | | COLLECTION | 9781913038205 | 2017-01-01 | 2019-03-07 | £11.99 |
| 484 | Alexander Grin | Crimson Sails | | NOVEL | 9780992055967 | 2013-09-28 | 2013-09-28 | £4.99 |
| 485 | Pierre Gripari | The Good Little Devil and Other Tales | | COLLECTION | 9781782690085 | 2013-08-29 | 2013-08-29 | £14.99 |
| 486 | Ann Grocott | Danni's Desperate Journey | | NOVEL | 0207155682 | 1987-10-01 | 1987-10-01 | £5.95 |
| 487 | Scott Grønmark | Steel Gods | | NOVEL | 0552134554 | 1990-03-01 | 1990-03-01 | £2.99 |
| 488 | Philip Gross | Going for Stone | | NOVEL | 0192753088 | 2002-12-01 | 2003-08-01 | £4.99 |
| 489 | Philip Gross | Marginaliens | | NOVEL | 0192719432 | 2003-07-01 | 2003-07-01 | £4.99 |
| 490 | Philip Gross | Plex | | NOVEL | 0590541765 | 1994-07-01 | 1994-07-01 | £5.99 |
| 491 | Philip Gross | Psylicon Beach | | NOVEL | 0590198084 | 1998-06-01 | 1998-06-01 | £5.99 |
| 492 | Philip Gross | The Wind Gate | | NOVEL | 0590541919 | 1995-07-01 | 1995-07-01 | £6.99 |
| 493 | Philip Gross | Transformer | | NOVEL | 0590133829 | 1996-09-01 | 1996-09-01 | £3.50 |
| 494 | Peter J. Grove | The Levellers | | NOVEL | 0709191561 | 1981-01-01 | 1981-01-01 | £6.25 |
| 495 | Ann Groves | Tales of Science Fiction and the Supernatural | | COLLECTION | 0863324568 | 1990-05-01 | 1990-05-01 | £8.50 |
| 496 | Simon Guerrier | Primeval: Fire and Water | Primeval | NOVEL | 9781848569027 | 2009-04-27 | 2012-01-03 | £6.39 |
| 497 | Simon Guerrier | Short Trips: How The Doctor Changed My Life | Short Trips | ANTHOLOGY | 9781844353415 | 2008-09-30 | 2008-09-30 | £14.99 |
| 498 | Simon Guerrier | Short Trips: The History of Christmas | Short Trips | ANTHOLOGY | 1844351491 | 2005-12-01 | 2005-12-01 | £14.99 |
| 499 | Simon Guerrier | Something Changed | Professor Bernice Summerfield | ANTHOLOGY | 184435153X | 2006-01-01 | 2006-01-01 | £14.99 |
| 500 | Simon Guerrier | The Pirate Loop | Doctor Who New Series | NOVEL | 9781785942259 | 2007-12-01 | 2016-09-22 | £7.99 |
| 501 | Simon Guerrier | The Road | Being Human | NOVEL | 9781409071068 | 2010-02-04 | 2010-02-04 | £4.49 |
| 502 | Simon Guerrier | The Slitheen Excursion | Doctor Who New Series | NOVEL | 9781409070221 | 2009-04-16 | 2011-04-02 | £ |
| 503 | Simon Guerrier | The Time Travellers | Doctor Who BBC Past Doctors | NOVEL | 0563486333 | 2005-11-01 | 2005-11-01 | £5.99 |
| 504 | Carol Guess | Homeschooling | | NOVEL | 9781848631052 | 2010-10-01 | 2010-10-01 | £25.00 |
| 505 | Diane Guest | Cristobel | | NOVEL | 0006377807 | 1992-11-01 | 1992-11-01 | £4.99 |
| 506 | Diane Guest | Shadow Hill | | NOVEL | 0002242958 | 1995-03-01 | 1995-01-01 | £15.99 |
| 507 | Diane Guest | The Nightwalker | | NOVEL | 0002242923 | 1993-01-01 | 1993-11-18 | £15.99 |
| 508 | Anton-Andreas Guha | Ende: A Diary of the Third World War | | NOVEL | 0552126535 | 1986-04-01 | 1986-04-01 | £2.95 |
| 509 | Charlotte Guillain | Marshmallows for Martians | ? | CHAPBOOK | 9781405266819 | 2014-06-05 | 2014-06-05 | £6.99 |
| 510 | Alastair G. Gunn | Ballymoon | | COLLECTION | 0953747662 | 2000-07-01 | 2000-07-01 | £4.00 |
| 511 | Alastair Gunn | The Wimbourne Book of Victorian Ghost Stories: Volume 2 | | ANTHOLOGY | 9780992982850 | 2018-08-14 | 2018-08-14 | £9.99 |
| 512 | David Gurney | The Conjurers | | NOVEL | 0450015785 | 1972-01-01 | 1973-01-01 | £0.40 |
| 513 | Nanda Guruswamy | The Weapon of the Devas | | NOVEL | None on record | 2015-12-06 | 2015-12-06 | £1.99 |
| 514 | Rico Gusman | Albatross | | NOVEL | 0951303406 | 1988-03-01 | 1988-03-01 | £3.95 |
| 515 | Peter Gutierrez | The Lodger | ? | CHAPBOOK | 9781408274156 | 2011-05-01 | 2011-05-01 | £5.75 |
| 516 | Peter Gutierrez | Victory of the Daleks | ? | CHAPBOOK | 9781408273876 | 2011-05-01 | 2011-05-01 | £5.50 |
| 517 | Paul C. Gutjahr | Voyage to the Moon and Other Imaginary Lunar Flights of Fancy in Antebellum America | | ANTHOLOGY | 9781783087426 | 2018-03-01 | 2018-03-22 | £79.01 |
| 518 | Lindsay Gutteridge | Fratricide Is a Gas | Matthew Dilke | NOVEL | 0708880479 | 1975-01-01 | 1979-05-01 | £0.90 |
| 519 | David Guymer | A Last Sniff of Glory | ? | CHAPBOOK | None on record | 2017-03-28 | 2017-03-28 | £2.49 |
| 520 | David Guymer | A Lesson in Iron | ? | CHAPBOOK | 9781780307473 | 2018-12-09 | 2018-12-09 | £2.49 |
| 521 | David Guymer | Bear Eater | ? | CHAPBOOK | 9781785722868 | 2016-12-11 | 2016-12-11 | £1.99 |
| 522 | David Guymer | Beneath the Black Thumb | ? | CHAPBOOK | 9781782516934 | 2015-07-20 | 2015-07-20 | £2.49 |
| 523 | David Guymer | Champion of the Gods | Hamilcar | NOVEL | 9781781939857 | 2019-02-16 | 2019-08-22 | £8.99 |
| 524 | David Guymer | Cold Blood | ? | CHAPBOOK | 9781782511588 | 2013-07-22 | 2013-07-22 | £2.49 |
| 525 | David Guymer | Cold Steel | ? | CHAPBOOK | 9781782511595 | 2013-07-29 | 2013-07-29 | £1.99 |
| 526 | David Guymer | Ferrus Manus: The Gorgon of Medusa | The Horus Heresy Primarchs | NOVEL | 9781785728860 | 2018-03-31 | 2018-03-31 | £9.99 |
| 527 | David Guymer | Final Duty | ? | CHAPBOOK | 9781782512721 | 2013-09-19 | 2013-09-19 | £0.99 |
| 528 | David Guymer | Force of Personality | ? | CHAPBOOK | None on record | 2019-04-08 | 2019-04-08 | £3.99 |
| 529 | David Guymer | Four Thousand Days | ? | CHAPBOOK | 9781785728815 | 2018-01-08 | 2018-01-08 | £2.49 |
| 530 | David Guymer | Godless | ? | CHAPBOOK | 9781785720321 | 2015-12-20 | 2015-12-20 | £1.99 |
| 531 | David Guymer | Gods' Gift | ? | CHAPBOOK | 9781785728471 | 2017-12-06 | 2017-12-06 | £1.99 |
| 532 | David Guymer | Infinite Circuit | ? | CHAPBOOK | 9781782515357 | 2015-05-25 | 2015-05-25 | £1.99 |
| 533 | David Guymer | Marienburg's Stand | ? | CHAPBOOK | 9781782518167 | 2015-02-24 | 2015-02-24 | £1.99 |
| 534 | David Guymer | One, Untended | ? | CHAPBOOK | 9781780307619 | 2018-12-14 | 2018-12-14 | £2.49 |
| 535 | David Guymer | Rememberers | ? | CHAPBOOK | 9781782518143 | 2015-02-26 | 2015-02-26 | £0.99 |
| 536 | David Guymer | The Eye of Medusa | Iron Hands | NOVEL | 9781785726422 | 2017-04-05 | 2017-04-05 | £9.99 |
| 537 | David Guymer | The Hardest Word | ? | CHAPBOOK | None on record | 2017-08-22 | 2017-08-22 | £2.49 |
| 538 | David Guymer | The Karag Durak Grudge | ? | CHAPBOOK | 9780857877970 | 2013-05-13 | 2013-05-13 | £2.49 |
| 539 | David Guymer | The Learning | ? | CHAPBOOK | 9781780309484 | 2018-08-24 | 2018-08-24 | £2.49 |
| 540 | David Guymer | The Sea Taketh | ? | CHAPBOOK | 9781780309583 | 2018-04-30 | 2018-04-30 | £2.49 |
| 541 | David Guymer | The Voice of Mars | Iron Hands | NOVEL | 9781785729126 | 2018-04-28 | 2018-04-28 | £9.99 |
| 542 | David Guymer | Thorgrim | ? | CHAPBOOK | None on record | 2016-11-15 | 2016-11-15 | £4.99 |
| 543 | David Guymer | Unseen | ? | CHAPBOOK | 9781782510154 | 2013-03-25 | 2013-03-25 | £1.99 |