| 1 | Hanya Yanagihara | The People in the Trees | | NOVEL | 9780857898975 | 2013-08-13 | None | £8.99 |
| 2 | Nir Yaniv | The Love Machine and Other Contraptions | | COLLECTION | 9781480298132 | 2012-11-27 | 2012-11-27 | £7.99 |
| 3 | Chelsea Quinn Yarbro | Science Fiction Special 40 | | OMNIBUS | 0283988118 | 1982-01-01 | 1982-01-01 | £ |
| 4 | Jessica Yates | Dragons and Warrior Daughters: Fantasy Stories by Women Writers | | ANTHOLOGY | 0006731791 | 1989-01-01 | 1989-10-01 | £2.50 |
| 5 | Simon Yates | The Songs of Phera Main | | NOVEL | 9781780880471 | 2011-12-15 | 2011-12-15 | £6.99 |
| 6 | Ian Yearsley | The Curse of Cannow's End | | NOVEL | 9781908645104 | 2012-10-20 | 2012-10-20 | £6.99 |
| 7 | Jack Yeovil | Orgy of the Blood Parasites | | NOVEL | 0671851098 | 1994-01-01 | 1994-10-01 | £4.99 |
| 8 | Prabda Yoon | The Sad Part Was | | COLLECTION | 9781911284079 | 2017-03-03 | 2017-03-03 | £3.99 |
| 9 | Rebecca York | Christmas at Jenkins Cove | Holiday Mysteries at Jenkins Cove | OMNIBUS | 9781472045058 | 2014-11-01 | 2014-11-01 | £5.99 |
| 10 | Malcolm Yorke | Scarem's House | | NOVEL | 0590558137 | 1994-01-01 | 1994-01-01 | £ |
| 11 | Malcolm Yorke | The Wishing Horse Rides Again | ? | CHAPBOOK | 0590198564 | 1999-01-01 | 1999-01-01 | £ |
| 12 | Rio Youers | Dark Dreams, Pale Horses | | COLLECTION | 9781848633964 | 2011-09-01 | 2011-09-01 | £3.99 |
| 13 | Rio Youers | End Times | | NOVEL | 9781848631014 | 2010-09-01 | 2010-09-01 | £50.00 |
| 14 | Rio Youers | Old Man Scratch | ? | CHAPBOOK | 9781848630031 | 2009-09-01 | 2009-09-01 | £25.00 |
| 15 | Marly Youmans | Val/Orson | ? | CHAPBOOK | 9781906301521 | 2009-04-01 | 2009-04-01 | £25.00 |
| 16 | B. A. Young | The Colonists from Space | | NOVEL | 0718303768 | 1979-01-01 | 1979-01-01 | £4.50 |
| 17 | Liam Young | Brave New Now | Close, Closer | ANTHOLOGY | 9789899851320 | 2014-05-15 | 2014-05-15 | £1.50 |
| 18 | Robert Young (II) | The Colosseum | Auctoratus | NOVEL | 9781908075352 | 2011-09-30 | 2011-09-30 | £9.99 |
| 19 | Robert Young (II) | Volunteer Gladiator | Auctoratus | NOVEL | 9781908075154 | 2011-05-05 | 2011-05-05 | £9.99 |
| 20 | Stuart Young | Spare Parts | | COLLECTION | 0954617800 | 2003-01-01 | 2003-01-01 | £8.00 |
| 21 | Suzanne Young | The Recovery | ? | CHAPBOOK | 9781481449007 | 2015-02-24 | 2015-02-24 | £2.49 |
| 22 | Wm. Paul Young | Eve | | NOVEL | 9781471151200 | 2015-09-15 | 2015-09-15 | £14.99 |
| 23 | Jim Younger | High John the Conqueror | | NOVEL | 9781409020813 | 2006-05-01 | 2010-09-30 | £4.49 |