Catch-22 by Joseph Heller
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4,347 books — 7,950 voters
The Origin of Species by Charles Darwin
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1,461 books — 5,286 voters

Harry Potter and the Deathly Hallows by J.K. Rowling
Best Books of the Decade: 2000s
7,187 books — 28,372 voters

Priestess of the White by Trudi Canavan
Best "Strong Female" Fantasy Novels
4,500 books — 18,374 voters
Birds Without Wings by Louis de Bernières
Most Depressing Book of All Time
1,232 books — 3,916 voters