As chosen by James Cawthorn (with some input by Michael Moorcock who was originally chosen to choose the books but declined to do so due do to other committments).
Printed by Carroll & Graf in 1988.
The list
Gulliver's Travels - Jonothan Swift
The Castle of Otranto -Horace Walpole
Vathek -William Beckford
The Monk - Matthew Gregory Lewis
Frankenstein -Mary Shelley
Melmoth the Wanderer - Charles Robert Maturin
The Narrative of Arthur Gordon Pym - Edgar Allan Poe
A Christmas Carol -Charles Dickens
Wuthering Heights - Emily Bronte
Moby-Dick - Herman Melville
Uncle Silas: A Tale of Bertram-Haugh - J.Shridan LeFanu
Alice's Adventures in Wonderland / Through the Looking-Glass - Lewis Carroll
Flatland - Edwin A Abbott
She - H.R Haggard
Doctor Jekyll and Mr Hyde - Robert Louis Stevenson
The Twilight of the Gods - Richard Garnett
The Story of the Glittering Plains - William Morris
The Picture of Dorian Gray - Oscar Wilde
Dracula - Bram Stoker
The Turn of the Screw - Henry James
The Man Who Was Thursday - G.K Chesterton
The House on the Borderland - William Hope Hodgson
Black Magic - Majorie Bowen
Zuleika Dobson - Max Beerbohm
A Princess of Mars - Edgar Rice Burroughs
Tarzan of the Apes - Edgar Rice Burroughs
The Lost World - Arthur Conan Doyle
The Night Land - William Hope Hodgson
Herland - Charlotte Perkins Gilman
The Citadel of Fear - Francis Srevens
A Voyage to Arcturus - David Lindsay
The Worm Ouroborus - E.R Eddison
The Haunted Woman - David Lindsay
Lady into Fox / The Man in the Zoo - David Granett
The King of Elfland's Daughter - Lord Dunsay
The Ship of Ishtar - Abraham Merritt
The Trial / The Castle - Franz Kafka
Witch Wood - John Buchan
War in Heaven - Charles Williams
Turnabout - Thorne Smith
The Night Life of the Gods - Thorne Smith
Dwellers in the Mirage - Abraham Merritt
Zothique - Clark Ashton Smith
The Werewolf of Paris - Guy Endore
Lost Horizon - James Hilton
Northwest Smith - Catherine L. Moore
Jirel of Joiry - Catherine L. Moore
The Circus of Dr Lao - Charles G. Finney
London Under England - Joespeh O'Neill
Conan the Conqueror - Robert E Howard
At the Mountains of Madness - H.P Lovecraft
To Walk the Night - William Sloane
Roads - Seabury Quinn
The Once and Future King - T.H White
Slaves of Sleep - L. Ron Hubbard
Caravan for China - Frank R. Stuart
Fear - L. Ron Hubbard
Darker Than You Think - Jack Williamson
The Case of Charles Dexter Ward - H.P Lovecraft
Land of Unreason - Pratt & de Camp
Conjure Wife - Fritz Leiber
The Book of Ptath - A E van Vogt
The Dark World / The Valley of the Flame - Henry Kuttner
Titus Groan / Gormanghast / Titus Alone - Mervyn Peake
The Exploits of Englebrecht - Maurice Richardson
Mistress Marshum's Repose - T.H White
Adept's Gambit - Fritz Leiber
The Well of the Unicorn - Fletcher Pratt
You're All Alone - Fritz Leiber
The Dying Earth - Jack Vance
The Devil in Velvet - John Dickson Carr
The Tritonian Ring - L. Sprague de Camp
Three Hearts and Three Lions - Poul Anderson
The Sword of Rhiannon - Leigh Brackett
The Broken Sword - Poul Anderson
The Lord of the Rings - J.R.R Tolkien
The Golden Strangers - Henry Treece
The Great Captains - Henry Treece
The Haunting of Hill House - Shirley Jackson
Stormbringer - Michael Moorcock
The Serpent / Atlan / The City / Some Summer Lands - Jane Gaskell
The Crystal World - J.G Ballard
Black Easter / The day After Judgement - James Blish
Rosemary's Baby - Ira Levin
A Wizard of Earthsea - Ursula K Le Guin
The Green Man - Kingsley Amis
Neither the Sea nor the Sand - Gordon Honeycombe
The Philosopher's Stone - Colin Wilson
The Pastel City - M. John Harrison
The Infernal Desire Machines of Dr Hoffman - Angela Carter
Red Shift - Alan Garner
The Compleat Enchanter - de Camp & Fletcher Pratt
The Alteration - Kingsley Amis
Our Lady of Darkness - Fritz Leiber
The Drawing of the Dark - Tim Powers
The Sending - Geoffrey Household
The Colour of Magic / The Light Fantastic - Terry Pratchett
The Businessman: A Tale of Terror - Thomas M. Disch
Hawksmoor - Peter Ackroyd
Expecting Someone Taller - Tom Holt.