Slaughterhouse-Five by Kurt Vonnegut Jr.
Best War Novels
1,671 books — 1,388 voters

Slaughterhouse-Five by Kurt Vonnegut Jr.
Best Science Fiction
3,649 books — 6,917 voters
The Devil in the White City by Erik LarsonThe Spirit Catches You and You Fall Down by Anne Fadiman
Best Non-Fiction (no biographies)
6,228 books — 8,066 voters

The Devil in the White City by Erik LarsonTheodore Rex by Edmund  Morris
Best American History Books
2,118 books — 2,487 voters
The Complete Concrete by Paul ChadwickThe Complete Maus by Art Spiegelman
Best Graphic Novels
3,449 books — 6,766 voters

The Devil in the White City by Erik LarsonA Short History of Nearly Everything by Bill Bryson
Best Books of the 21st Century
9,841 books — 21,936 voters
One Hundred Years of Solitude by Gabriel García Márquez
Best Books of the 20th Century
7,809 books — 49,781 voters

Harry Potter and the Deathly Hallows by J.K. RowlingHarry Potter and the Sorcerer's Stone by J.K. RowlingHarry Potter and the Goblet of Fire by J.K. RowlingHarry Potter and the Half-Blood Prince by J.K. RowlingHarry Potter and the Chamber of Secrets by J.K. Rowling
YA Books Far Better than Twilight
3,257 books — 4,883 voters
Slaughterhouse-Five by Kurt Vonnegut Jr.
Best Time Travel Fiction
1,954 books — 5,239 voters

The Complete Maus by Art SpiegelmanThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas AdamsTo Kill a Mockingbird by Harper LeeThe Lord of the Rings by J.R.R. TolkienSlaughterhouse-Five by Kurt Vonnegut Jr.
Books That Everyone Should Read At Least Once
31,417 books — 119,718 voters
Theodore Rex by Edmund  MorrisEisenhower by Stephen E. AmbroseJohn Adams by David McCullough
Best Biographies
1,658 books — 2,942 voters