The God Delusion by Richard Dawkins
Notable Atheist Books
603 books — 1,001 voters
The Selfish Gene by Richard DawkinsThe Demon-Haunted World by Carl SaganThe Origin of Species by Charles Darwin
Best Science Books - Non-Fiction Only
2,035 books — 3,693 voters

The Selfish Gene by Richard Dawkins
Best Non-Fiction (no biographies)
6,535 books — 8,276 voters
Scientology by L. Ron Hubbard
The Worst Books of All Time
8,128 books — 19,912 voters