| 1 | Basil Jackson | Supersonic | | NOVEL | 0722149514 | 1975-01-01 | 1977-10-01 | £0.85 |
| 2 | Jake Jackson | Creation Myths: Legends from the Beginning of Time | | ANTHOLOGY | 9781783613144 | 2016-03-15 | 2016-03-15 | £20.00 |
| 3 | R. E. Jackson | The Wheel of the Finfolk | | NOVEL | 0701104872 | 1972-01-01 | 1972-07-01 | £1.30 |
| 4 | Shirley Jackson | The Missing Girl | | COLLECTION | 9780241339282 | 2018-02-22 | 2018-02-22 | £1.00 |
| 5 | Shirley Jackson | The Tooth | | COLLECTION | 9780141970042 | 2011-02-15 | 2011-02-15 | £2.49 |
| 6 | Stefan Jackson | Glass Shore | | NOVEL | 9781908168481 | 2014-12-08 | 2014-12-08 | £9.99 |
| 7 | Steve Jackson | House of Hell | Fighting Fantasy Gamebooks | NOVEL | 9781407182001 | 1985-01-01 | 2017-09-07 | £6.99 |
| 8 | Steve Jackson | The Citadel of Chaos | Fighting Fantasy Gamebooks | NOVEL | 9781407181257 | 1983-01-01 | 2017-09-07 | £6.99 |
| 9 | Steve Jackson | The Trolltooth Wars | Fighting Fantasy | NOVEL | 0140324828 | 1989-04-01 | 1989-04-01 | £2.99 |
| 10 | Steve Jackson (USA) | Scorpion Swamp | Fighting Fantasy Gamebooks | NOVEL | 0140318291 | 1984-09-27 | 1984-09-27 | £1.75 |
| 11 | Stuart Jackson | Tracer | | NOVEL | 0747406030 | 1990-06-01 | 1990-06-01 | £3.50 |
| 12 | William Jackson | The Alternative Third World War, 1985-2035 | | NOVEL | 0080347401 | 1987-09-01 | 1987-09-01 | £14.95 |
| 13 | Matthew Jacobs | The Script of the Film | Doctor Who: The Scripts | NOVEL | 056340499X | 1996-05-01 | 1996-05-01 | £5.99 |
| 14 | W. W. Jacobs | The Collected Supernatural and Weird Fiction of W. W. Jacobs | | COLLECTION | 9781782828150 | 2019-08-28 | 2019-08-28 | £10.99 |
| 15 | W. W. Jacobs | The Rival Beauties | ? | CHAPBOOK | 9781473308442 | 2014-10-14 | 2014-10-14 | £5.95 |
| 16 | Dan Jacobson | Her Story | | NOVEL | 0233981160 | 1987-08-01 | 1987-08-01 | £8.95 |
| 17 | Dan Jacobson | The Wonder-Worker | | NOVEL | 9781842321423 | 1973-01-01 | 2016-12-31 | £7.99 |
| 18 | Christian Jacq | The Black Pharaoh | | NOVEL | 0671018051 | 1999-01-01 | 2000-06-01 | £5.99 |
| 19 | Christian Jacq | The Flaming Sword | | NOVEL | 0743230795 | 2003-03-01 | 2003-03-01 | £17.99 |
| 20 | Christian Jacq | The War of the Crowns | | NOVEL | 0743230825 | 2003-01-01 | 2003-01-01 | £17.99 |
| 21 | Liz de Jager | Banished | The Blackhart Legacy | NOVEL | 9781447247654 | 2014-02-27 | 2014-02-27 | £7.99 |
| 22 | Liz de Jager | Judged | The Blackhart Legacy | NOVEL | 9781447247715 | 2016-01-14 | 2016-01-14 | £5.99 |
| 23 | Liz de Jager | Vowed | The Blackhart Legacy | NOVEL | 9781509853533 | 2014-11-06 | 2017-01-26 | £14.99 |
| 24 | Carole Jahme | Worth Their Weight In Blood | | NOVEL | 9781908509017 | 2011-12-20 | 2011-12-20 | £8.50 |
| 25 | Maxim Jakubowski | Beyond Lands of Never | | ANTHOLOGY | 0048232548 | 1984-01-01 | 1984-08-01 | £2.50 |
| 26 | Maxim Jakubowski | Lands of Never | | ANTHOLOGY | 0048232394 | 1983-01-01 | 1983-10-01 | £2.50 |
| 27 | Maxim Jakubowski | The Louisiana Republic | | NOVEL | 9781910720950 | 2018-05-10 | 2018-05-10 | £8.99 |
| 28 | Maxim Jakubowski | The Mammoth Book of Jack the Ripper | The Mammoth Book of ... | ANTHOLOGY | 185487537X | 1999-03-01 | 1999-03-01 | £7.99 |
| 29 | Maxim Jakubowski | The New English Library Book of Internet Stories | | ANTHOLOGY | 0340769742 | 2000-01-01 | 2000-11-01 | £6.99 |
| 30 | Maxim Jakubowski | Travelling Towards Epsilon | | ANTHOLOGY | 0450033694 | 1977-01-01 | 1978-06-01 | £1.15 |
| 31 | Maxim Jakubowski | Twenty Houses of the Zodiac | | ANTHOLOGY | 0450043339 | 1979-07-01 | 1979-07-01 | £1.25 |
| 32 | Stefan Jakubowski | Dead Peculiar | Richard Ross | NOVEL | 9780955424403 | 2007-04-28 | 2007-04-28 | £7.99 |
| 33 | Stefan Jakubowski | Miscreation | | NOVEL | 9780955424410 | 2008-07-01 | 2008-07-01 | £7.99 |
| 34 | Stefan Jakubowski | Not Just for Christmas | | COLLECTION | 9780957462502 | 2013-11-09 | 2013-11-09 | £7.99 |
| 35 | Stefan Jakubowski | Once Upon a Tyme | Tom Tyme | NOVEL | 9780955424434 | 2009-10-23 | 2009-10-23 | £7.99 |
| 36 | Stefan Jakubowski | Strange Relations | Richard Ross | NOVEL | 1905170203 | 2005-10-08 | 2005-10-08 | £6.99 |
| 37 | Mark Jales | In His Own Image | | NOVEL | 0709178425 | 1970-01-01 | 1970-01-01 | £4.80 |
| 38 | Mark Jales | Normal Service Will Be Resumed | | NOVEL | 0709180683 | 1980-06-19 | 1980-06-19 | £5.25 |
| 39 | Collins Jallim | He, Transcendental Child | | NOVEL | 0863329462 | 1994-09-01 | 1994-09-01 | £10.95 |
| 40 | Collins Jallim | The Devilgod in the Empire of the Universal Master | | NOVEL | 0863323162 | 1989-07-01 | 1989-07-01 | £10.50 |
| 41 | Bill James | World War Two Will Not Take Place | | NOVEL | 9781780100128 | 2011-01-28 | 2011-09-01 | £4.99 |
| 42 | Chris James (I) | Rescue Charlie | | NOVEL | 9781430322023 | 2007-06-09 | 2007-06-09 | £14.95 |
| 43 | Elizabeth James | The Woman Who Married a Bear | ? | CHAPBOOK | 9781927018651 | 2015-11-30 | 2015-11-30 | £12.99 |
| 44 | Elle James | Spellbound | | ANTHOLOGY | 9780263913897 | 2014-03-07 | 2014-03-07 | £6.99 |
| 45 | Elle James | The Whisper | ? | CHAPBOOK | 9781408937624 | 2011-08-01 | 2011-08-01 | £1.99 |
| 46 | Elliott James | Charmed I'm Sure | ? | CHAPBOOK | 9780356504148 | 2013-09-26 | 2013-09-26 | £1.49 |
| 47 | Gill James | Devils, Demons and Werewolves | | ANTHOLOGY | 9781907335488 | 2010-10-15 | 2017-03-22 | £2.99 |
| 48 | Henry James | The Collected Supernatural and Weird Fiction of Henry James: Volume 1 | | COLLECTION | 9780857060433 | 2009-11-30 | 2009-11-30 | £20.99 |
| 49 | Henry James | The Collected Supernatural and Weird Fiction of Henry James: Volume 2 | | COLLECTION | 9780857060440 | 2009-11-30 | 2009-11-30 | £20.99 |
| 50 | Henry James | The Collected Supernatural and Weird Fiction of Henry James: Volume 3 | | COLLECTION | 9780857060457 | 2009-11-30 | 2009-11-30 | £20.99 |
| 51 | Henry James | The Collected Supernatural and Weird Fiction of Henry James: Volume 4 | | COLLECTION | 9780857060426 | 2009-11-30 | 2009-11-30 | £12.99 |
| 52 | Henry James | The Sense of the Past | | COLLECTION | 1872621996 | 2006-06-23 | 2006-06-23 | £35.00 |
| 53 | Henry James | The Turn of the Screw & Owen Wingrave | | COLLECTION | 9781509850945 | 2018-09-06 | 2018-09-06 | £9.99 |
| 54 | Henry James | The Turn of the Screw and Other Stories | | COLLECTION | 9780199536177 | 1992-01-01 | 2008-04-17 | £4.99 |
| 55 | Henry James | The Turn of the Screw and Other Stories | | COLLECTION | 9780099511236 | 2007-10-04 | 2007-10-04 | £5.99 |
| 56 | John James | Votan and Other Novels | Photinus | OMNIBUS | 9781473214040 | 2014-06-12 | 2015-05-28 | £5.99 |
| 57 | Lauren James | The Quiet at the End of the World | | NOVEL | 9781406375510 | 2019-03-07 | 2019-03-07 | £7.99 |
| 58 | Laurence James | Beyond the Grave | Dark Future (Laurence) | NOVEL | 0553404032 | 1992-08-01 | 1992-08-01 | £2.99 |
| 59 | Laurence James | New Life for Old | Simon Rack | NOVEL | 0722149840 | 1975-08-01 | 1975-08-01 | £0.50 |
| 60 | Laurence James | The Horned God | Dark Future (Laurence) | NOVEL | 0553404040 | 1992-09-01 | 1992-09-01 | £2.99 |
| 61 | Laurence James | The Plague | Dark Future (Laurence) | NOVEL | 0553404059 | 1992-10-01 | 1992-10-01 | £2.99 |
| 62 | Laurence James | The Revengers | Dark Future (Laurence) | NOVEL | 0553404024 | 1992-08-01 | 1992-08-01 | £2.99 |
| 63 | Laurence James | The Road | | NOVEL | 0450056309 | 1983-10-01 | 1983-10-01 | £1.50 |
| 64 | M. R. James | A Boxful of Ghosts | | OMNIBUS | 9781907360206 | 2010-10-01 | 2010-10-01 | £29.99 |
| 65 | M. R. James | A Warning to the Curious and Other Stories | | COLLECTION | 0753804468 | 1998-05-01 | 1998-05-01 | £3.99 |
| 66 | M. R. James | A Warning to the Curious: The Ghost Stories of M. R. James | | COLLECTION | 0099526301 | 1987-01-01 | 1988-01-01 | £3.50 |
| 67 | M. R. James | Canon Alberic's Scrap-Book | | COLLECTION | 9780141196725 | 2011-02-15 | 2011-02-15 | £2.49 |
| 68 | M. R. James | Complete Ghost Stories | | COLLECTION | 9781509845637 | 2007-09-01 | 2017-01-26 | £0.98 |
| 69 | M. R. James | Curious Warnings: The Great Ghost Stories of M. R. James | | COLLECTION | 9780857388056 | 2012-04-26 | 2012-04-26 | £14.99 |
| 70 | M. R. James | Ghost Stories | | COLLECTION | 9781448113583 | 2011-10-06 | 2011-10-06 | £7.99 |
| 71 | M. R. James | M. R. James' Dark Choices: Volume 1 | Dark Choices | ANTHOLOGY | 9780857064455 | 2011-02-02 | 2011-02-02 | £22.99 |
| 72 | M. R. James | M. R. James' Dark Choices: Volume 2 | Dark Choices | ANTHOLOGY | 9780857064479 | 2011-02-02 | 2011-02-02 | £22.99 |
| 73 | M. R. James | M. R. James' Dark Choices: Volume 3 | Dark Choices | ANTHOLOGY | 9780857064493 | 2011-02-02 | 2011-02-02 | £22.99 |
| 74 | M. R. James | M. R. James' Dark Choices: Volume 4 | Dark Choices | ANTHOLOGY | 9780857064523 | 2011-02-02 | 2011-02-02 | £15.99 |
| 75 | M. R. James | M. R. James' Dark Choices: Volume 5 | Dark Choices | ANTHOLOGY | 9780857064530 | 2011-02-02 | 2011-02-02 | £22.99 |
| 76 | M. R. James | O Whistle and I'll Come to You, My Lad | ? | CHAPBOOK | 9781902421575 | 2011-01-12 | 2011-01-12 | £7.99 |
| 77 | M. R. James | Room 13 and Other Ghost Stories: | | COLLECTION | 1405076607 | 2005-06-21 | 2005-06-21 | £9.48 |
| 78 | M. R. James | The Fenstanton Witch and Others | | COLLECTION | 090615331X | 1999-11-01 | 1999-11-01 | £4.00 |
| 79 | M. R. James | The Haunted Doll's House and Other Stories | | COLLECTION | 0141184817 | 2000-11-02 | 2000-11-02 | £6.99 |
| 80 | Mia James | By Midnight | Ravenwood Mysteries | NOVEL | 9780575095557 | 2010-05-20 | 2010-07-07 | £4.49 |
| 81 | Mia James | Darkness Falls | Ravenwood Mysteries | NOVEL | 9781780620442 | 2011-09-01 | 2011-09-29 | £4.49 |
| 82 | Mia James | Sleeping Angel | Ravenwood Mysteries | NOVEL | 9781780620800 | 2013-12-05 | 2013-12-05 | £3.49 |
| 83 | Nick James (II) | The Victorian Vampire | | NOVEL | None on record | 2019-11-29 | 2019-11-29 | £0.99 |
| 84 | Paul James | Rogan | | NOVEL | 0427004322 | 1980-01-01 | 1980-01-01 | £0.95 |
| 85 | Peter James | Alchemist | | NOVEL | 9781409132981 | 1996-01-01 | 2010-10-07 | £4.99 |
| 86 | Peter James | The Truth | | NOVEL | 9781409133001 | 1997-01-01 | 2010-11-25 | £4.49 |
| 87 | R. Alan James | No News from Providence | | NOVEL | 070916873X | 1978-08-24 | 1978-08-24 | £3.95 |
| 88 | V. V. James | Sanctuary | | NOVEL | 9781473229457 | 2019-08-08 | 2019-08-08 | £14.99 |
| 89 | William James | Before the Sun Falls | Sunfall | NOVEL | 1857231309 | 1993-11-01 | 1993-11-01 | £5.99 |
| 90 | William James | The Earth Is the Lord's | Sunfall | NOVEL | 1857230841 | 1992-01-01 | 1993-01-01 | £5.99 |
| 91 | William James | The Other Side of Heaven | Sunfall | NOVEL | 1857231279 | 1993-05-01 | 1993-05-01 | £5.99 |
| 92 | Hilarie Janes | The Wand of Alithea | | NOVEL | 1847481639 | 2007-11-20 | 2007-11-20 | £7.99 |
| 93 | Phil Janes | Fission Impossible | Pioneer (Phil Janes) | NOVEL | 1857980603 | 1993-11-01 | 1993-11-01 | £13.99 |
| 94 | Phil Janes | I, Arnold | Pioneer (Phil Janes) | NOVEL | 1857981014 | 1995-04-01 | 1995-04-01 | £15.99 |
| 95 | Phil Janes | The Galaxy Game | Pioneer (Phil Janes) | NOVEL | 1857981162 | 1993-05-01 | 1993-05-01 | £14.99 |
| 96 | Julia Jarman | Ollie and the Bogle | | NOVEL | 0862641632 | 1987-04-01 | 1987-04-01 | £5.95 |
| 97 | Julia Jarman | The Crow Haunting | | NOVEL | 0006752136 | 1996-01-01 | 1998-01-01 | £3.99 |
| 98 | David Jarrett | Sean Yeager and the DNA Thief | Aenathen | NOVEL | 9780957375123 | 2012-11-22 | 2012-11-22 | £7.99 |
| 99 | Vicki Jarrett | Always North | | NOVEL | 9781912658039 | 2019-10-21 | 2019-10-21 | £9.99 |
| 100 | Gordon Jarvie | Scottish Folk and Fairy Tales from Burns to Buchan | | ANTHOLOGY | 9780141442266 | 2008-01-01 | 2008-01-01 | £8.99 |
| 101 | Edward Jarvis | Maggots | | NOVEL | 0099464802 | 1986-07-01 | 1986-07-01 | £1.95 |
| 102 | Edward Jarvis | Pestilence | | NOVEL | 0099382202 | 1983-08-01 | None | £1.60 |
| 103 | James Jarvis | The Midgard Knight | | NOVEL | 9781907257544 | 2012-01-01 | 2012-01-01 | £7.99 |
| 104 | Robin Jarvis | A Warlock in Whitby | Whitby | NOVEL | 0750012021 | 1992-09-01 | 1992-09-01 | £9.99 |
| 105 | Robin Jarvis | The Devil's Paintbox | The Witching Legacy | NOVEL | 9781780317335 | 2017-03-09 | 2017-03-09 | £4.31 |
| 106 | Robin Jarvis | The Power of Dark | The Witching Legacy | NOVEL | 9781780317328 | 2016-06-02 | 2016-06-30 | £3.99 |
| 107 | Robin Jarvis | The Whitby Child | Whitby | NOVEL | 0750015802 | 1994-11-01 | 1994-11-01 | £9.99 |
| 108 | James Jauncey | The Crystal Keeper | | NOVEL | 059013339X | 1996-01-01 | 1996-01-01 | £3.50 |
| 109 | Mike Jefferies | Children of the Flame | | NOVEL | 0586217495 | 1994-11-01 | 1994-11-01 | £4.99 |
| 110 | Mike Jefferies | The Ghosts of Candleford | | NOVEL | 0006482082 | 1999-07-01 | 1999-07-01 | £5.99 |
| 111 | Mike Jefferies | The Siege of Candlebane Hall | Loremasters of Elundium | NOVEL | 0006482198 | 1998-07-01 | 1998-07-01 | £5.99 |
| 112 | Mike Jefferies | Threads of Magic | Loremasters of Elundium | NOVEL | 0006482627 | 1997-06-01 | 1997-06-01 | £5.99 |
| 113 | Dave Jeffery | Bad Vision | ? | CHAPBOOK | None on record | 2018-10-01 | 2018-10-01 | £3.50 |
| 114 | P. F. Jeffery | Jane | The Warriors of Love | NOVEL | 9781907681226 | 2013-05-15 | 2013-05-15 | £13.50 |
| 115 | Joe Jeney | Adrian & Gabriel or Drugs, Sex and the Sunrise | | NOVEL | 9780980322941 | 2009-07-01 | 2009-07-01 | £14.99 |
| 116 | Joel Jenkins | Devil Take the Hindmost | Denbrook Supernatural | NOVEL | 9780979732966 | 2009-09-15 | 2009-09-15 | £8.94 |
| 117 | Steven Jenkins | Blue Skin: Book Four | Blue Skin | NOVEL | 9781691883585 | 2019-09-08 | 2019-09-08 | £9.99 |
| 118 | T. M. Jenkins | The Waking | | NOVEL | 9780330541763 | 2006-05-01 | 2012-06-28 | £4.99 |
| 119 | Ceci Jenkinson | Mirror Mischief | | NOVEL | 9780571249695 | 2009-12-24 | 2009-12-24 | £5.99 |
| 120 | Leon Jenner | Bricks | | NOVEL | 9781444712971 | 2011-08-04 | 2011-08-04 | £8.49 |
| 121 | P. R. Jennings | W. B Yeats and the Secret Masters of the World | | NOVEL | 9780957536418 | 2013-04-27 | 2013-04-27 | £7.99 |
| 122 | Paul Jennings | Unseen! | | COLLECTION | 0141305150 | 1998-01-01 | 2000-04-01 | £3.99 |
| 123 | Oskar Jensen | The Wild Hunt | The Stones of Winter | NOVEL | 9781471404153 | 2016-04-07 | 2016-04-07 | £4.99 |
| 124 | Martin Jenson | An Odour Of Decay | | NOVEL | 0450024261 | 1975-09-01 | 1975-09-01 | £0.35 |
| 125 | Martin Jenson | The Echo On The Stairs | | NOVEL | 0450031225 | 1977-03-01 | 1977-03-01 | £0.55 |
| 126 | Gill Jepson | The Secret of the Swan | Out of Time (Gill Jepson) | NOVEL | 9781848766129 | 2011-05-01 | 2011-05-01 | £6.99 |
| 127 | Jerome K. Jerome | After Supper Ghost Stories and Other Tales | | COLLECTION | 0862997623 | 1990-01-01 | 1990-01-01 | £3.95 |
| 128 | Dan Jerris | The Deathless Pirate King | Dragon Blood Pirates | NOVEL | 9780734412386 | 2009-01-01 | 2011-09-01 | £6.49 |
| 129 | Dan Jerris | The Evil Pearl | Dragon Blood Pirates | NOVEL | 9780734412355 | 2009-01-01 | 2011-09-01 | £6.49 |
| 130 | Dan Jerris | The Golden Casket | Dragon Blood Pirates | NOVEL | 9780734412379 | 2009-01-01 | 2011-09-01 | £6.49 |
| 131 | Dan Jerris | The Power of the Scabbard | Dragon Blood Pirates | NOVEL | 9780734412331 | 2011-05-05 | 2011-09-01 | £6.49 |
| 132 | Dan Jerris | The Sorcerer's Death Mask | Dragon Blood Pirates | NOVEL | 9780734412362 | 2009-01-01 | 2011-09-01 | £6.49 |
| 133 | Dan Jerris | The Zombies' Treasure | Dragon Blood Pirates | NOVEL | 9780734412348 | 2011-05-05 | 2011-09-01 | £6.49 |
| 134 | Wolfgang Jeschke | Midas | | NOVEL | 0450509370 | 1990-02-01 | 1990-02-01 | £2.99 |
| 135 | Robert T. Jeschonek | Mad Scientist Meets Cannibal | | COLLECTION | 9781906301668 | 2008-06-01 | 2008-08-01 | £25.00 |
| 136 | Carolyn Jess-Cooke | The Guardian Angel's Journal | | NOVEL | 9780749953287 | 2011-04-07 | 2011-04-07 | £9.99 |
| 137 | Paul Jessup | Glass Coffin Girls | | COLLECTION | 9781848630246 | 2009-11-01 | 2009-11-01 | £25.00 |
| 138 | K. W. Jeter | Eye and Talon | Blade Runner | NOVEL | 1857988671 | 2000-01-01 | 2001-01-01 | £6.99 |
| 139 | Raj Kamal Jha | Fireproof | | NOVEL | 9780330493772 | 2007-11-30 | 2008-02-01 | £7.99 |
| 140 | Ravi Jha | On This Day | | NOVEL | 0755203054 | 2007-10-23 | 2007-10-23 | £7.99 |
| 141 | Nick Joaquin | A Portrait of the Artist as Filipino: An Elegy in Three Acts | | NOVEL | 9780143130710 | 2017-04-18 | 2017-04-18 | £13.99 |
| 142 | Nick Joaquin | The Woman Who Had Two Navels and Tales of the Tropical Gothic | | COLLECTION | 9780143130710 | 2017-04-18 | 2017-04-18 | £13.99 |
| 143 | Curtis Jobling | Dead Scared | Haunt | NOVEL | 9781471115776 | 2014-06-05 | 2014-06-05 | £6.99 |
| 144 | Derek John | The Felicity of Epigones | | COLLECTION | 9780993527814 | 2016-05-06 | 2016-05-06 | £22.00 |
| 145 | K. A. John | Wake Wood | | NOVEL | 9780099556183 | 2011-10-06 | 2011-10-06 | £6.99 |
| 146 | Stuart Johns | Aerworuld | | NOVEL | 9780956528704 | 2010-03-29 | 2010-03-29 | £6.99 |
| 147 | Stuart Johns | Aerworuld: Bk. II: Dark Forests and Treacherous Seas | | NOVEL | 9780956528711 | 2011-03-01 | 2011-03-01 | £6.99 |
| 148 | Adam Johnson | Emporium: Stories | | COLLECTION | 9781473509191 | 2002-01-01 | 2014-06-19 | £6.49 |
| 149 | Andy Johnson | Seelöwe Nord: The Germans Are Coming | | NOVEL | 9781907294389 | 2010-02-01 | 2010-02-01 | £11.99 |
| 150 | C. R. Johnson | Carousel | The Carnival of Souls | NOVEL | 9781848762220 | 2010-01-31 | 2010-01-31 | £6.99 |
| 151 | Catherine Johnson | Sawbones | | NOVEL | 9781406349245 | 2013-09-19 | 2013-09-19 | £6.99 |
| 152 | Catherine Johnson | Sophie's Ghost | | NOVEL | 1859021638 | 1994-11-01 | 1994-11-01 | £3.95 |
| 153 | Daisy Johnson | Everything Under | | NOVEL | 9781784702113 | 2018-07-12 | 2019-02-07 | £8.99 |
| 154 | Debbie Johnson | Dark Touch | Lily McCain | NOVEL | 9781448176960 | 2015-03-26 | 2015-03-26 | £5.99 |
| 155 | Debbie Johnson | Dark Vision | Lily McCain | NOVEL | 9780091953591 | 2014-03-27 | 2014-03-27 | £8.99 |
| 156 | Denis Johnson | Already Dead: A California Gothic | | NOVEL | 0330371142 | 1997-01-01 | 1999-06-01 | £6.99 |
| 157 | Glen Ashley Johnson | Angel Kagoule | | NOVEL | 187419601X | 1993-01-01 | 1993-01-01 | £3.99 |
| 158 | I. R. Johnson | The Witcher Keys | | NOVEL | 9781909716087 | 2013-09-02 | 2013-10-31 | £7.99 |
| 159 | Jane Johnson | Dragon's Fire | The Eidolon Chronicles | NOVEL | 1847380484 | 2007-04-02 | 2007-01-01 | £9.99 |
| 160 | Jane Johnson | Maskmaker | | NOVEL | 9781407106878 | 2010-03-01 | 2010-03-01 | £5.99 |
| 161 | Joseph Olabiyi Johnson | Legends of Nale | | NOVEL | 0755200756 | 2003-02-01 | 2003-02-01 | £9.99 |
| 162 | Kate Johnson | Impossible Things | | NOVEL | 9781781890592 | 2014-01-06 | 2014-02-07 | £7.99 |
| 163 | Kate Johnson | The Untied Kingdom | | NOVEL | 9781906931681 | 2011-04-01 | 2011-04-01 | £7.99 |
| 164 | Kenneth Rayner Johnson | The Succubus | | NOVEL | 0450046249 | 1980-06-01 | 1980-06-01 | £1.00 |
| 165 | Maureen Johnson | The Boy in the Smoke | ? | CHAPBOOK | 9781471403941 | 2014-02-24 | 2014-03-06 | £1.00 |
| 166 | Pete Johnson | Eyes of the Alien | | NOVEL | 0440863902 | 1999-01-01 | 1999-03-01 | £3.99 |
| 167 | Pete Johnson | My Friend's a Werewolf | | NOVEL | 9781448100231 | 1997-04-01 | 2011-12-31 | £3.99 |
| 168 | Pete Johnson | Phantom Fear | | OMNIBUS | 9781448100231 | 2005-01-01 | 2011-12-31 | £3.99 |
| 169 | Pete Johnson | The Creeper | | NOVEL | 9780440870869 | 2000-01-01 | 2014-11-27 | £5.99 |
| 170 | Pete Johnson | The Dead Hour | | NOVEL | 0749714603 | 1993-10-01 | 1993-10-01 | £2.99 |
| 171 | Pete Johnson | The Frighteners | | NOVEL | 9780440871491 | 2001-04-01 | 2016-05-02 | £6.99 |
| 172 | Pete Johnson | The Ghost Dog | | NOVEL | 9780440871255 | 1996-01-01 | 2015-04-30 | £8.99 |
| 173 | Roger Johnson | A Ghostly Crew: Tales from the Endeavour | | COLLECTION | 1902309162 | 2001-01-01 | 2001-01-01 | £22.00 |
| 174 | Roger Johnson | In the Night, in the Dark: Tales of Ghosts and Less Welcome Visitors | | COLLECTION | 9781780920504 | 2011-11-30 | 2011-11-30 | £13.99 |
| 175 | Wentworth M. Johnson | Sideways Time | | NOVEL | 9781491285732 | 2013-08-13 | 2013-08-13 | £4.64 |
| 176 | Wentworth M. Johnson | The Angel of the Vail | | NOVEL | 1857761227 | 1996-11-01 | 1996-11-01 | £12.95 |
| 177 | E. K. Johnston | Kingdom of Sleep | | NOVEL | 9781447290407 | 2016-12-15 | 2016-12-15 | £4.74 |
| 178 | Paul Johnston | Blood Tree | Dalrymple | NOVEL | 0340717068 | 2000-01-01 | 2000-11-01 | £5.99 |
| 179 | Paul Johnston | Heads or Hearts | Dalrymple | NOVEL | 9781847516053 | 2015-04-30 | 2016-01-29 | £12.99 |
| 180 | Paul Johnston | The House of Dust | Dalrymple | NOVEL | 0340766131 | 2001-01-01 | 2002-02-01 | £5.99 |
| 181 | Carole Johnstone | Cold Turkey | ? | CHAPBOOK | 9780955368387 | 2014-04-01 | 2014-04-01 | £10.00 |
| 182 | Mark Jolley | Alternative One: The Greatest Voyage of the Plutonians | | NOVEL | 0861166639 | 1982-01-01 | 1982-01-01 | £ |
| 183 | Victor Joly | The Unknown Collaborator and Other Legendary Tales | | COLLECTION | 9781943813230 | 2017-01-16 | 2017-01-16 | £10.50 |
| 184 | Allan Frewin Jones | Blood Stone | Dark Paths | NOVEL | 0330374761 | 1999-07-01 | 1999-07-01 | £2.99 |
| 185 | Allan Frewin Jones | The Monk's Curse | Dark Paths | NOVEL | 033037477X | 1999-09-01 | 1999-09-01 | £2.99 |
| 186 | Allison Jones | At The Stroke of Midnight: A Collection of Ghost Stories | | ANTHOLOGY | 9781849249676 | 2010-05-31 | 2010-05-31 | £14.99 |
| 187 | Allison Jones | In the Depths of Darkness: A Collection of Ghost Stories | | ANTHOLOGY | 9780857391193 | 2010-08-31 | 2010-08-31 | £15.99 |
| 188 | Ben Jones | Beware of the Mirror Man | | NOVEL | 9780956682635 | 2011-01-31 | 2011-01-31 | £9.99 |
| 189 | Ceri Jones | Science Fiction Stories | | COLLECTION | 9780230716919 | 2009-01-31 | 2009-01-31 | £7.70 |
| 190 | D. J. Jones | Souls of the Universe | | COLLECTION | 0863034187 | 1988-01-01 | 1988-01-01 | £2.95 |
| 191 | Dennis Jones | Russian Spring | | NOVEL | 009942990X | 1985-01-01 | 1985-01-01 | £2.50 |
| 192 | Diana Wynne Jones | Changeover | | NOVEL | 0954749804 | 1970-01-01 | 2004-01-01 | £9.99 |
| 193 | Diana Wynne Jones | Diana Wynne Jones's Fantastical Journeys Collection | | OMNIBUS | 9780008127398 | 2015-01-01 | 2015-01-01 | £10.49 |
| 194 | Diana Wynne Jones | Diana Wynne Jones's Magic and Myths Collection | | OMNIBUS | 9780008127404 | 2015-01-01 | 2015-01-01 | £12.99 |
| 195 | Diana Wynne Jones | Minor Arcana | | COLLECTION | 0575601914 | 1996-01-01 | 1998-03-01 | £5.99 |
| 196 | Diana Wynne Jones | Vile Visitors | | COLLECTION | 9780007489435 | 2012-09-27 | 2012-09-27 | £4.99 |
| 197 | Diana Wynne Jones | Who Got Rid of Angus Flint? | ? | CHAPBOOK | 0749702826 | 1978-01-01 | 1990-01-01 | £1.99 |
| 198 | G. C. Jones | Slave to the Mind | The Lyonsblood Chronicles | NOVEL | 9781926635026 | 2008-11-11 | 2008-11-11 | £7.99 |
| 199 | Glyn Jones | The Space Museum | Doctor Who Target novelizations | NOVEL | 0491032951 | 1987-01-01 | 1987-01-01 | £7.25 |
| 200 | Gwyneth Jones | Band of Gypsys | | NOVEL | 0575076453 | 2005-05-01 | 2006-06-01 | £6.99 |
| 201 | Gwyneth Jones | Castles Made of Sand | Bold As Love | NOVEL | 0575073950 | 2002-01-01 | 2003-11-01 | £6.99 |
| 202 | Gwyneth Jones | Escape Plans | | NOVEL | 0048232637 | 1986-01-01 | 1986-05-01 | £8.95 |
| 203 | Gwyneth Jones | Kairos | | NOVEL | 0044401639 | 1988-11-01 | 1988-11-01 | £12.95 |
| 204 | Gwyneth Jones | Midnight Lamp | Bold As Love | NOVEL | 0575074701 | 2003-11-01 | 2003-11-01 | £17.99 |
| 205 | Gwyneth Jones | Rainbow Bridge | Bold As Love | NOVEL | 0575079762 | 2006-06-01 | 2007-04-01 | £7.99 |
| 206 | Gwyneth Jones | The Grasshopper's Child | Bold As Love | NOVEL | 9781502384805 | 2015-01-14 | 2015-01-14 | £9.99 |
| 207 | Hilary Jane Jones | The Faerie Glen | The Journey | NOVEL | 9780957237124 | 2013-05-25 | 2013-05-25 | £9.99 |
| 208 | Hilary Jane Jones | The Wicked Wood | The Journey | NOVEL | 9780957237100 | 2012-05-26 | 2012-05-26 | £8.99 |
| 209 | J. Jones (I) | Destiny of the Sword | | NOVEL | 9781909224001 | 2012-06-01 | 2012-06-01 | £8.99 |
| 210 | Jenny Jones | Fly by Night | Flight over Fire | NOVEL | 0747202389 | 1990-08-01 | 1990-08-01 | £14.95 |
| 211 | Jenny Jones | Lies and Flames | Flight over Fire | NOVEL | 074720456X | 1992-07-01 | 1992-07-01 | £15.99 |
| 212 | Jenny Jones | The Blue Manor | | NOVEL | 0575600101 | 1995-06-01 | 1996-05-01 | £5.99 |
| 213 | Jenny Jones | The Carver | | NOVEL | 0590190369 | 1997-02-01 | 1997-02-01 | £3.99 |
| 214 | Jenny Jones | The Edge of Vengeance | Flight over Fire | NOVEL | 0747203547 | 1991-06-01 | 1991-06-01 | £14.95 |
| 215 | Jenny Jones | The House of Birds | | NOVEL | 0340635924 | 1996-05-01 | 1996-05-01 | £3.99 |
| 216 | Jenny Jones | The Webbed Hand | | NOVEL | 0590556495 | 1994-09-01 | 1994-09-01 | £3.50 |
| 217 | Jenny Jones | Where the Children Cry | | NOVEL | 0575061588 | 1998-02-01 | 1999-04-01 | £5.99 |
| 218 | Lisa Renee Jones | Demon's Seduction | ? | CHAPBOOK | 9781408900093 | 2010-07-01 | 2010-07-01 | £1.99 |
| 219 | Liz Riley Jones | Hiraeth a Burden: baich | Hiraeth Trilogy | NOVEL | 9781784624392 | 2015-08-13 | 2015-08-13 | £8.99 |
| 220 | Liz Riley Jones | Hiraeth: A Mark - Marc | Hiraeth Trilogy | NOVEL | 9781784627768 | 2015-01-28 | 2015-03-10 | £1.99 |
| 221 | Mark Howard Jones | Cthulhu Cymraeg 2 | | ANTHOLOGY | 9781326990121 | 2017-04-21 | 2017-04-21 | £7.99 |
| 222 | Mark Howard Jones | Dreamglass Days: the Sein und Werden Stories | | COLLECTION | 9781326709815 | 2016-07-14 | 2016-07-14 | £4.99 |
| 223 | Mark Howard Jones | Night Country | | COLLECTION | None on record | 2005-01-01 | 2005-01-01 | £2.00 |
| 224 | Mark Howard Jones | Songs from Spider Street | | COLLECTION | 9780955518591 | 2010-05-12 | 2010-05-12 | £8.99 |
| 225 | Mark Howard Jones | The Garden of Doubt on the Island of Shadows | ? | CHAPBOOK | None on record | 2006-10-01 | 2006-10-01 | £1.99 |
| 226 | Mark Jones (I) | Black Lightning | | NOVEL | 0575058994 | 1995-05-25 | 1995-05-25 | £9.99 |
| 227 | Martin Jones | The Demeter | ? | CHAPBOOK | None on record | 2012-09-01 | 2012-09-01 | £7.00 |
| 228 | Matthew Jones | Bad Therapy | Doctor Who New Adventures | NOVEL | 0426204905 | 1996-12-01 | 1996-12-01 | £4.99 |
| 229 | Matthew Jones | Beyond the Sun | Doctor Who New Adventures | NOVEL | 0426205111 | 1997-07-01 | 1997-07-01 | £4.99 |
| 230 | Michael R. Jones | The Infinite River: Tales from the Other Place | | NOVEL | 9781846246067 | 2011-09-01 | 2011-09-01 | £12.99 |
| 231 | Raymond F. Jones | Cubs of the Wolf | ? | CHAPBOOK | 9780575130043 | 2007-09-06 | 2015-07-30 | £2.99 |
| 232 | Richard Jones | 2012: The Eternal Night | | NOVEL | 9781907652677 | 2010-09-21 | 2010-09-21 | £9.99 |
| 233 | Russell Jones | Where Rockets Burn Through: Contemporary Science Fiction Poems from the UK | | ANTHOLOGY | 9781908058058 | 2012-11-15 | 2012-11-15 | £9.99 |
| 234 | Salomé Jones | Cthulhu Lives!: An Eldritch Tribute to H. P. Lovecraft | | ANTHOLOGY | 9780957627147 | 2014-08-26 | 2014-08-26 | £8.99 |
| 235 | Salomé Jones | Red Phone Box: A Darkly Magical Story Cycle | | ANTHOLOGY | 9780957627109 | 2013-11-30 | 2013-11-30 | £12.00 |
| 236 | Sharon Jones | Dead Jealous | Poppy Sinclair | NOVEL | 9781408327555 | 2013-07-04 | 2013-07-04 | £3.49 |
| 237 | Sharon Jones | Dead Silent | Poppy Sinclair | NOVEL | 9781408327562 | 2014-02-06 | 2014-02-06 | £6.99 |
| 238 | Stephen Jones | Best New Horror #26 | Best New Horror | ANTHOLOGY | 9781848639423 | 2015-08-01 | 2015-10-01 | £25.00 |
| 239 | Stephen Jones | Best New Horror #27 | Best New Horror | ANTHOLOGY | 9781786360663 | 2017-01-01 | 2017-01-01 | £12.99 |
| 240 | Stephen Jones | Brighton Shock! | World Horror Convention Souvenir Books | ANTHOLOGY | 9781848630703 | 2010-03-01 | 2010-03-01 | £95.00 |
| 241 | Stephen Jones | By Moonlight Only | New Not At Night | ANTHOLOGY | 1902880722 | 2003-10-01 | 2003-10-01 | £60.00 |
| 242 | Stephen Jones | Dark of the Night | | ANTHOLOGY | 1901914003 | 1997-01-01 | 1997-10-01 | £15.99 |
| 243 | Stephen Jones | Don't Turn Out the Light | New Not At Night | ANTHOLOGY | 1904619266 | 2005-03-01 | 2005-03-01 | £25.00 |
| 244 | Stephen Jones | Flotsam Fantastique: The Souvenir Book of the World Fantasy Convention 2013 | World Fantasy Convention 2013 | ANTHOLOGY | 9781848634831 | 2013-10-01 | 2013-10-01 | £25.00 |
| 245 | Stephen Jones | Gaslight & Ghosts | World Fantasy Convention Souvenir Books | ANTHOLOGY | 0951389203 | 1988-10-01 | 1988-10-01 | £9.95 |
| 246 | Stephen Jones | Horrorology | | ANTHOLOGY | 9781782069997 | 2015-10-01 | 2016-09-22 | £9.99 |
| 247 | Stephen Jones | Keep Out the Night | New Not At Night | ANTHOLOGY | 1902880544 | 2001-01-01 | 2002-10-01 | £65.00 |
| 248 | Stephen Jones | Psycho-Mania! | | ANTHOLOGY | 9781780330266 | 2013-10-17 | 2013-10-17 | £8.99 |
| 249 | Stephen Jones | The Giant Book of Terror | | ANTHOLOGY | 0752501429 | 1994-08-01 | 1994-08-01 | £2.99 |
| 250 | Stephen Jones | The Mammoth Book of Best New Horror 22 | Best New Horror | ANTHOLOGY | 9781849017725 | 2011-10-18 | 2011-10-18 | £7.99 |
| 251 | Stephen Jones | White of the Moon: New Tales of Madness and Dread | | ANTHOLOGY | 1901914135 | 1999-01-01 | 1999-05-01 | £16.99 |
| 252 | Stephen Jones | Zombie Apocalypse! Fightback | | ANTHOLOGY | 9781780334653 | 2012-10-04 | 2012-10-04 | £8.99 |
| 253 | Stephen Lloyd Jones | The Disciple | | NOVEL | 9781472228895 | 2016-10-06 | 2016-10-06 | £3.99 |
| 254 | Stephen Lloyd Jones | The Silenced | | NOVEL | 9781472228925 | 2018-04-19 | 2018-04-19 | £8.99 |
| 255 | Will Macmillan Jones | Bass Instinct | The Banned Underground | NOVEL | 9781908208156 | 2013-04-01 | 2013-04-01 | £7.99 |
| 256 | Will Macmillan Jones | Have Frog, Will Travel | The Banned Underground | NOVEL | 9781908208217 | 2014-04-01 | 2014-04-01 | £7.99 |
| 257 | Will Macmillan Jones | The Amulet of Kings | The Banned Underground | NOVEL | 9781908208064 | 2011-11-15 | 2011-11-15 | £7.99 |
| 258 | Will Macmillan Jones | The Mystic Accountants | The Banned Underground | NOVEL | 9781908208088 | 2012-04-15 | 2012-04-15 | £7.99 |
| 259 | Will Macmillan Jones | The Satnav of Doom | The Banned Underground | NOVEL | 9781908208187 | 2013-10-01 | 2013-10-01 | £7.99 |
| 260 | Barry Jonsberg | Admission | Pandora Jones | NOVEL | 9781743366721 | 2014-05-01 | 2016-04-07 | £7.99 |
| 261 | Jane Jordan | Blood and Ashes | | NOVEL | 9781848763487 | 2010-06-07 | 2010-06-07 | £7.99 |
| 262 | Neil Jordan | The Dream of a Beast | | NOVEL | 9781848548213 | 1983-10-06 | 2012-11-22 | £5.49 |
| 263 | Robert Jordan | The Conan Chronicles 2 | Conan Pastiches | OMNIBUS | 9781405512312 | 1997-03-01 | 2011-10-06 | £8.99 |
| 264 | Mark Joseph | Mexico 21 | | NOVEL | 0246133449 | 1990-01-01 | 1990-08-01 | £12.95 |
| 265 | Dr. Kanchan Joshi | Tenth Avatar: A Quest for Answers | | NOVEL | 9781640620179 | 2017-10-17 | 2017-10-17 | £9.06 |
| 266 | S. T. Joshi | At the Mountains of Madness | | ANTHOLOGY | 9781848637368 | 2015-02-01 | 2015-02-01 | £20.00 |
| 267 | S. T. Joshi | Best of Black Wings | | ANTHOLOGY | 9781786364647 | 2019-10-01 | 2019-10-01 | £14.99 |
| 268 | S. T. Joshi | Something from Below | ? | CHAPBOOK | 9781786363800 | 2019-10-01 | 2019-10-01 | £18.00 |
| 269 | S. T. Joshi | The Curse of Yig and Selected Ghastly Ghostwriters | | ANTHOLOGY | 9781786363091 | 2018-02-01 | 2018-02-01 | £20.00 |
| 270 | S. T. Joshi | The Shadow Over Innsmouth | | ANTHOLOGY | 9781848637351 | 2015-02-01 | 2015-02-01 | £20.00 |
| 271 | Christopher Joyce | The Creatures of Chichester: The One about the Mystery Blaze | | NOVEL | 9781780037127 | 2013-10-18 | 2013-10-18 | £5.99 |
| 272 | Graham Joyce | 25 Years in the Word Mines: The Best Short Fiction of Graham Joyce | | COLLECTION | 9781848637573 | 2014-08-01 | 2014-08-01 | £25.00 |
| 273 | Graham Joyce | Black Dust & Other Tales of Interrupted Childhood | | COLLECTION | 1870824520 | 2005-01-01 | 2005-01-01 | £9.95 |
| 274 | Graham Joyce | House of Lost Dreams | | NOVEL | 0747206910 | 1993-07-01 | 1993-07-01 | £15.99 |
| 275 | Graham Joyce | Leningrad Nights | ? | CHAPBOOK | 190288003X | 1999-03-01 | 1999-03-01 | £25.00 |
| 276 | Graham Joyce | Spiderbite | ? | CHAPBOOK | 1858814251 | 1997-10-01 | 1997-10-01 | £3.50 |
| 277 | Graham Joyce | The Devil's Ladder | | NOVEL | 9780571242474 | 2009-08-01 | 2009-08-01 | £6.99 |
| 278 | Graham Joyce | The Web 2027 | Web | ANTHOLOGY | 1857985990 | 1999-05-01 | 1999-05-01 | £5.99 |
| 279 | Graham Joyce | Three Ways to Snog an Alien | | NOVEL | 9780571239511 | 2008-07-03 | 2008-07-03 | £6.99 |
| 280 | W. E. Joyce | The Fantastic Flying Books of Mr Morris Lessmore | ? | CHAPBOOK | 9780857079459 | 2012-08-30 | 2012-08-30 | £4.99 |
| 281 | Hwang Jungeun | One Hundred Shadows | | NOVEL | 9781911284031 | 2016-10-03 | 2016-10-03 | £3.99 |
| 282 | Ann Jungman | Broomstick Services | ? | CHAPBOOK | 0590763407 | 1990-01-01 | 1990-01-01 | £1.75 |
| 283 | Ann Jungman | Count Boris Bolescu and the Transylvanian Tango | ? | CHAPBOOK | 0552526363 | 1991-01-01 | 1991-01-01 | £2.50 |
| 284 | Ann Jungman | Count Draco Down Under | ? | CHAPBOOK | 0590136275 | 1996-04-01 | 1996-04-01 | £2.50 |
| 285 | Ann Jungman | Lucy Keeps the Wolf from the Door | Lucy and the Wolf | NOVEL | 0006730507 | 1989-01-01 | 1989-01-01 | £1.95 |
| 286 | Ann Jungman | Lucy and the Big Bad Wolf | Lucy and the Wolf | NOVEL | 0006732704 | 1986-01-01 | 1992-10-01 | £ |
| 287 | Ann Jungman | Lucy and the Wolf in Sheep's Clothing | Lucy and the Wolf | NOVEL | 0006732712 | 1987-01-01 | 1992-04-01 | £2.99 |
| 288 | Ann Jungman | Rosie and the Royal Hunt | ? | CHAPBOOK | 0552527025 | 1992-01-01 | 1992-01-01 | £2.50 |
| 289 | Ann Jungman | The Little Dragon Nips Out | ? | CHAPBOOK | 0552527483 | 1993-01-01 | 1993-01-01 | £2.50 |
| 290 | Ann Jungman | The Little Dragon Steps Out | ? | CHAPBOOK | 0552525219 | 1992-01-01 | 1992-01-01 | £2.50 |
| 291 | Ann Jungman | Vlad the Drac Down Under | Vlad the Drac / The Adventures of a Vegetable Vampire | NOVEL | 9781903015667 | 1989-01-01 | 2007-04-01 | £4.99 |
| 292 | Cristina Jurado | Alphaland | | COLLECTION | 9788494669040 | 2018-07-18 | 2018-07-18 | £7.99 |