Late to today's party and most of my really big favorites have already made an appearance in other folks' posts, so I figured I'll just list mine and showcase at the top of my post some of the books that haven't yet been highlighted by others. By bingo category, with suspense and mysteries together in one block and an extra block for the children's books instead:
MYSTERIES / SUSPENSE
Dorothy L. Sayers: Lord Peter Wimsey series, especially the Wimsey & Vane subseries / quartet
Arthur Conan Doyle: Sherlock Holmes series
Agatha Christie: Poirot, Miss Marple and Tommy & Tuppence series, The Witness for the Prosecution, The Mousetrap, And Then There Were None, Crooked House, Towards Zero, The Sittaford Mystery
Patricia Wentworth: Miss Silver series
Ngaio Marsh: Roderick Alleyn series
Josephine Tey: Brat Farrar, The Daughter of Time, The Franchise Affair
John Dickson Carr: The Hollow Man
Anthony Wynne: Murder of a Lady
Mavis Doriel Hay: The Santa Klaus Murder
Georgette Heyer: Envious Casca
Robert van Gulik: Judge Dee series
Georges Simenon: Maigret series
Graham Greene: The Third Man
John Mortimer: Rumpole series
Ruth Rendell: Inspector Wexford series
P.D. James: Inspector Dalgliesh series
Dennis Wheatley: Who Killed Robert Prentice?
Q. Patrick: File on Fenton and Farr
Mary Roberts Rinehart: Locked Doors
Rex Stout: Nero Wolfe series
Patricia Highsmith: The Talented Mr. Ripley
Raymond Chandler: The Big Sleep
Dashiell Hammett: The Maltese Falcon
Cornell Woolrich: Rear Window, The Bride Wore Black
James M. Cain: Double Indemnity, The Postman Always Rings Twice
John Dudley Ball: In the Heat of the Night
Mario Puzo: The Godfather
Neil Simon, H.R.F. Keating: Murder by Death
SUPERNATURAL (FANTASY, SCIENCE FICTION), DYSTOPIA
William Shakespeare: The Tempest
J.R.R. Tolkien: The Hobbit, The Lord of the Rings
C.S. Lewis: The Chronicles of Narnia
Ray Bradbury: Fahrenheit 451
Margaret Atwood: The Handmaid's Tale
George Orwell: 1984
Aldous Huxley: Brave New World
Philip K. Dick: Do Androids Dream of Electric Sheep?
Sheri S. Tepper: The True Game
Alfred Lord Tennyson: The Lady of Shalott
GOTHIC & HORROR
William Shakespeare: Macbeth
Jane Austen: Northanger Abbey
Charlotte Brontë: Jane Eyre
Anne Brontë: The Tenant of Wildfell Hall
Daphne Du Maurier: Rebecca
Christina Rossetti: Goblin Market
Charles Dickens: Bleak House, A Christmas Carol, The Signalman
Oscar Wilde: The Picture of Dorian Gray, The Canterville Ghost
Wilkie Collins: The Moonstone
Theodor Storm: Der Schimmelreiter (The Dykemaster)
Edith Wharton: Ghost Stories
Edgar Allan Poe: The Cask of Amontillado, The Pit and the Pendulum, The Raven, The Mask of the Red Death
Bram Stoker: Dracula
Mary Shelley: Frankenstein
Robert Louis Stevenson: Dr. Jekyll and Mr. Hyde
Henry James: The Turn of the Screw
Shirley Jackson: The Lottery, We Have Always Lived in the Castle
CHILDREN'S BOOKS
Otfried Preußler: The Little Witch, The Little Ghost
Robert Arthur, et al.: The Three Investigators series
T.H. White: The Sword in the Stone
Wilhelm Hauff: Fairy Tales