Green Illusions by Ozzie ZehnerCollapse by Jared Diamond
Best Non-Fiction (no biographies)
6,222 books — 8,064 voters

Collapse by Jared DiamondGreen Illusions by Ozzie ZehnerSustainable Energy - without the hot air by David J.C. MacKay
Best Environmental Books
1,070 books — 1,199 voters

The Hitchhiker’s Guide to the Galaxy by Douglas AdamsWatchmen by Alan             Moore
Best Books Ever
75,805 books — 281,766 voters
The Name of the Wind by Patrick Rothfuss
Best Fantasy Books of the 21st Century
3,051 books — 9,878 voters

Harry Potter and the Sorcerer's Stone by J.K. RowlingThe Lord of the Rings by J.R.R. TolkienThe Name of the Wind by Patrick Rothfuss
Best Fantasy Series, Trilogies, and Duologies
2,064 books — 11,663 voters
To Kill a Mockingbird by Harper Lee
Books That Everyone Should Read At Least Once
31,404 books — 119,668 voters

The Hitchhiker’s Guide to the Galaxy by Douglas AdamsTo Kill a Mockingbird by Harper Lee
Best Books of the 20th Century
7,815 books — 49,781 voters