The God Delusion by Richard Dawkins
Notable Atheist Books
552 books — 950 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
1,839 books — 3,603 voters

The Selfish Gene by Richard Dawkins
Best Non-Fiction (no biographies)
6,239 books — 8,067 voters
Scientology by L. Ron Hubbard
The Worst Books of All Time
8,096 books — 19,872 voters