Cryptonomicon by Neal StephensonSlaughterhouse-Five by Kurt Vonnegut Jr.East of Eden by John SteinbeckThe Old Man and the Sea by Ernest Hemingway
Best Books of the 20th Century
7,815 books — 49,771 voters
The Looming Tower by Lawrence WrightThe Devil in the White City by Erik LarsonGuns, Germs, and Steel by Jared DiamondThe Demon-Haunted World by Carl SaganGödel, Escher, Bach by Douglas R. Hofstadter
Best Non-Fiction (no biographies)
6,222 books — 8,064 voters

The Demon-Haunted World by Carl SaganGödel, Escher, Bach by Douglas R. HofstadterThe Immortal Life of Henrietta Lacks by Rebecca SklootThe Disappearing Spoon by Sam KeanBad Science by Ben Goldacre
Best Science Books - Non-Fiction Only
1,836 books — 3,595 voters
Freud by Frederick CrewsThe Death of Expertise by Thomas M. NicholsThe Hormone Myth by Robyn Stein DeLucaDoc Doc Zeus by Thomas KeechBellevue by David M. Oshinsky
Science Based Medicine Recommends
131 books — 100 voters