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jupiter9, the top 106 books most often marked as "unread" by LibraryThing’s users.
Bold for read books,
underline for books read in school, and
italics for started but didn't finish.
Jonathan Strange & Mr Norrell
Anna KareninaCrime and Punishment
Catch-22One Hundred Years of Solitude
Wuthering HeightsThe Silmarillion
Life of Pi The Name of the RoseDon Quixote
Moby-Dick (I haven't read it but I added the hyphen anyyway)
UlyssesMadame BovaryThe OdysseyPride and PrejudiceJane EyreThe Tale of Two Cities - but isn't it "A Tale"? asks Em. Yes, it is
The Brothers Karamazov
Guns, Germs, and SteelWar and PeaceVanity Fair The Time Traveler’s Wife
The IliadEmmaThe Blind Assassin
The Kite RunnerMrs. Dalloway
Great ExpectationsAmerican GodsA Heartbreaking Work of Staggering GeniusAtlas ShruggedReading Lolita in Tehran
Memoirs of a Geisha
Middlesex
Quicksilver
Wicked : the life and times of the wicked witch of the West
The Canterbury TalesThe Historian : a novel
A Portrait of the Artist as a Young Man
Love in the Time of Cholera
Brave New World The FountainheadFoucault’s PendulumMiddlemarchFrankenstein
The Count of Monte Cristo
Dracula
A Clockwork OrangeAnansi Boys
The Once and Future King
The Grapes of Wrath
The Poisonwood Bible1984Angels & DemonsInferno
The Satanic Verses
Sense and SensibilityThe Picture of Dorian GrayMansfield ParkOne Flew Over the Cuckoo’s NestTo the Lighthouse
Tess of the D’UrbervillesOliver Twist Gulliver’s Travels
Les Misérables
The Amazing Adventures of Kavalier and Clay
The Curious Incident of the Dog in the Night-TimeDuneThe PrinceThe Sound and the Fury
Angela’s Ashes : a memoirThe God of Small Things
A People’s History of the United States : 1492-present
Cryptonomicon
Neverwhere
A Confederacy of Dunces
A Short History of Nearly Everything
Dubliners
The Unbearable Lightness of Being
Beloved
Slaughterhouse-fiveThe Scarlet LetterEats, Shoots & Leaves
The Mists of Avalon
Oryx and Crake
Collapse : how societies choose to fail or succeed
Cloud Atlas
The Confusion
Lolita
Persuasion
Northanger Abbey
The Catcher in the Rye
On the Road
The Hunchback of Notre Dame
Freakonomics
Zen and the Art of Motorcycle Maintenance
The Aeneid
Watership Down
Gravity’s Rainbow
The Hobbit
In Cold Blood
White Teeth
Treasure Island
David Copperfield
I would have to add
Infinite Jest to this list, just to brag.