Anthem by Ayn Rand
Best Utopian & Dystopian Fiction
223 books — 382 voters
Thief of Time by Terry PratchettThe Restaurant at the End of the Universe by Douglas Adams
Best Time Travel Fiction
2,155 books — 5,437 voters

Green Eggs and Ham by Dr. SeussHarry Potter and the Sorcerer's Stone by J.K. RowlingFahrenheit 451 by Ray BradburyTolkien On Fairy-stories by J.R.R. Tolkien
Books That Everyone Should Read At Least Once
32,548 books — 123,920 voters
Night Watch by Sergei LukyanenkoAmerican Gods by Neil Gaiman
The Best Urban Fantasy
4,295 books — 12,873 voters

1984 by George OrwellThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas AdamsEnder’s Game by Orson Scott CardOne Flew Over the Cuckoo’s Nest by Ken KeseyWatership Down by Richard  Adams
Best Books of the 20th Century
7,878 books — 49,825 voters
The Hot Zone by Richard   PrestonChaos by James GleickThe Universe in a Nutshell by Stephen W. HawkingThe Language Instinct by Steven PinkerThe Tao of Physics by Fritjof Capra
Best Science Books - Non-Fiction Only
1,930 books — 3,628 voters