Getting Things Done by David    Allen
Motivational and Self-Improvement Books
3,400 books — 4,578 voters
To Kill a Mockingbird by Harper LeePride and Prejudice by Jane AustenThe Diary of a Young Girl by Anne Frank1984 by George OrwellThe Hobbit, or There and Back Again by J.R.R. Tolkien
100 Books to Read in a Lifetime: Readers' Picks
16,300 books — 19,348 voters

Wool Omnibus by Hugh Howey
Best Indie Books to Read in 2012
986 books — 1,091 voters
The Windup Girl by Paolo BacigalupiThe Hunger Games by Suzanne Collins
Best Science Fiction of the 21st Century
1,235 books — 9,181 voters

The Hitchhiker's Guide to the Galaxy by Douglas AdamsThe Lord of the Rings by J.R.R. TolkienA Game of Thrones by George R.R. MartinCalvin and Hobbes by Bill WattersonCat’s Cradle by Kurt Vonnegut Jr.
Reddit Recommendations
581 books — 760 voters
Stranger in a Strange Land by Robert A. HeinleinEnder’s Game by Orson Scott CardThe Foundation Trilogy by Isaac AsimovThe Time Machine by H.G. Wells
Best Science Fiction & Fantasy Books
8,912 books — 26,271 voters

Twilight by Stephenie MeyerBreaking Dawn by Stephenie MeyerNew Moon by Stephenie MeyerEclipse by Stephenie MeyerGuilty by Ann Coulter
The Worst Books of All Time
8,127 books — 19,914 voters
Tolkien On Fairy-stories by J.R.R. TolkienThe Giving Tree by Shel SilversteinThe Lord of the Rings by J.R.R. TolkienThe Hitchhiker’s Guide to the Galaxy by Douglas AdamsEnder’s Game by Orson Scott Card
Books That Everyone Should Read At Least Once
33,243 books — 125,955 voters