Mystery
The Complete Sherlock Holmes, by Arthur Conan Doyle (Included in this are The Hound of the Baskervilles, A Study in Scarlet, The Adventures of Sherlock Holmes and The Sign of Four, each of which garned a lot of votes on its own.)
The Maltese Falcon, by Dashiell Hammett
The Daughter of Time, by Josephine Tey
Presumed Innocent, by Scott Turow
The Spy Who Came in from the Cold, by John le Carré
The Moonstone, by Wilkie Collins
The Big Sleep, by Raymond Chandler
Rebecca, by Daphne du Maurier
And Then There Were None by Agatha Christie
Anatomy of a Murder, by Robert Traver
The Murder of Roger Ackroyd, by Agatha Christie
The Long Goodbye, by Raymond Chandler
The Postman Always Rings Twice, by James M Cain
The Godfather, by Mario Puzo
A Coffin for Dimitrios, by Eric Ambler
Witness for the Prosecution, by Agatha Christie
The Day of the Jackal, by Frederick Forsyth
Farewell, My Lovely, by Raymond Chandler
The Thirty-Nine Steps, by John Buchan
The Name of the Rose, by Umberto Eco
Crime and Punishment, by Fyodor Dostoevsky
Eye of the Needle, by Ken Follett
Rumpole of the Bailey, by John Mortimer
Tinker, Tailor, Soldier, Spy, by John le Carré
The Thin Man, by Dashiell Hammett
The Woman in White, by Wilkie Collins
Trent's Last Case, by E C Bentley
Double Indemnity, by James M Cain
Gorky Park, by Martin Cruz Smith
The Hot Rock, by Donald E Westlake
Red Harvest, by Dashiell Hammett
The Circular Staircase, by Mary Roberts Rinehart
Murder on the Orient Express, by Agatha Christie
The Ipcress File, by Len Deighton
Laura, by Vera Caspary
The Laughing Policeman, by Maj Sjöwall and Per Wahlöö
Bank Shot, by Donald E Westlake
"A" Is for Alibi, by Sue Grafton
The First Deadly Sin, by Lawrence Sanders
Rogue Male, by Geoffrey Household
Murder Must Advertise, by Dorothy L Sayers
The Innocence of Father Brown, by G K Chesterton
Smiley's People, by John le Carré
The Lady in the Lake, by Raymond Chandler
The Mystery of Edwin Drood, by Charles Dickens
Wobble to Death, by Peter Lovesey
Ashenden, by W Somerset Maugham
The Seven Per-Cent Solution, by Nicholas Meyer
The Doorbell Rang, by Rex Stout
Stick, by Elmore Leonard
The Little Drummer Girl, by John le Carré
Dracula, by Bram Stoker
The Talented Mr Ripley, by Patricia Highsmith
The Moving Toyshop, by Edmund Crispin
Clouds of Witness, by Dorothy L Sayers
From Russia, with Love, by Ian Fleming
Beast in View, by Margaret Millar
Smallbone Deceased, by Michael Gilbert
The Franchise Affair, by Josephine Tey
Crocodile on the Sandbank, by Elizabeth Peters
Shroud for a Nightingale, by P D James
The Secret Agent, by Joseph Conrad
The Dreadful Lemon Sky, by John D MacDonald
The Glass Key, by Dashiell Hammett
Judgment in Stone, by Ruth Rendell
Brat Farrar, by Josephine Tey
The Chill, by Ross Macdonald
Devil in a Blue Dress, by Walter Mosley
God Save the Mark, by Donald E Westlake
Home Sweet Homicide, by Craig Rice
The Three Coffins (aka The Hollow Man), by John Dickson Carr
Prizzi's Honor, by Richard Condon
The Steam Pig, by James McClure
Time and Again, by Jack Finney
A Morbid Taste for Bones, by Ellis Peters
Rosemary's Baby, by Ira Levin
Horror
Lindquist, John Let me In
Stephen King Carrie
Salem’s Lot
The Shinning
Rage
The Stand
The Dead Zone
The Long Walk
Fire – Starter
Cujo
Running Man
Pet Sematary
Christine
The Talisman
Misery
It
Mary Shelley Frankenstein
Bram Stoker Dracula
H.P. Lovecraft The Lurking Fear
Dante The Divine Comedy
Henry James The Turn of the Screw
Robert Louis Stephenson
The Strange Case of Dr. Jekyll and Mr. Hyde.
Algernon Blackwood The Willows
The Damned
The Insanity of Jones
Richard Matheson I am Legend
Hell House
Shirley Jackson
The Haunting of Hill House
Peter Straub Ghost Story
Robert Bloch Psycho
Ira Levine Rosemary’s Baby
Jay Anson The Amityville Horror
William Peter Blatty Audrey Rose
Helter Skelter
John Saul Suffer the Children
Cry for the Strangers
Punish the Sinners
Gary Brandner The Howling
Thomas Harris Red Dragon
Silence of the Lambs
James Herbert The Rats
The Fog
The Dark
F. Paul Wilson The Keep
Michael Bishop Who Made Stevie Crye
Frank DeFelitta The Entity
Anne Rice Interview With a Vampire
The Mummy
The Tale of the Body Thief
Blood and Gold
Ray Bradbury Something Wicked This Way Comes
Dean Koontz Odd Thomas
Frankenstein
What the Night Knows
Lightning
Watchers
Intensity
Sole Survivor
Phantoms
Peter Benchley Jaws
Brent Monakan The Bell Witch