The Hitchhiker’s Guide to the Galaxy by Douglas AdamsThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas AdamsThe Essential Calvin and Hobbes by Bill WattersonThe Restaurant at the End of the Universe by Douglas AdamsGreen Eggs and Ham by Dr. Seuss
Best Humorous Books
4,347 books — 7,949 voters
Our Hearts Were Young and Gay by Cornelia Otis SkinnerI Capture the Castle by Dodie SmithThe World According to Garp by John IrvingThe Hitchhiker’s Guide to the Galaxy by Douglas AdamsCalvin and Hobbes by Bill Watterson
Books That Made Me Laugh Out Loud
2,067 books — 2,423 voters

1984 by George OrwellA Clockwork Orange by Anthony BurgessNight by Elie WieselAnimal Farm by George OrwellThe Shining by Stephen  King
The Most Disturbing Books Ever Written
3,214 books — 11,346 voters
A Wrinkle in Time by Madeleine L'EngleThe Left Hand of Darkness by Ursula K. Le GuinThe Giver by Lois LowryDragonflight by Anne McCaffreyThe Ship Who Sang by Anne McCaffrey
Science Fiction Books by Female Authors
1,710 books — 1,559 voters

Old Man's War by John ScalziThe Hitchhiker’s Guide to the Galaxy by Douglas Adams
fun / funny Sci-Fi & Fantasy
206 books — 136 voters
Dune by Frank HerbertA Wrinkle in Time by Madeleine L'EngleThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas AdamsHyperion by Dan SimmonsThe Lion, the Witch and the Wardrobe by C.S. Lewis
Best Science Fiction & Fantasy Books
8,494 books — 24,778 voters

The Diary of a Young Girl by Anne FrankNight by Elie WieselThe Story of My Life by Helen KellerBlack Like Me by John Howard GriffinSybil by Flora Rheta Schreiber
Best Memoir / Biography / Autobiography
5,862 books — 6,385 voters
Nourishing Traditions by Sally Fallon MorellThe Classic Italian Cook Book by Marcella HazanMadhur Jaffrey's World-of-the-East Vegetarian Cooking by Madhur JaffreyJacques Pépin's Simple and Healthy Cooking by Jacques PépinMoosewood Restaurant Cooks for a Crowd by The Moosewood Collective
Best Cookbooks
1,448 books — 1,108 voters

To Kill a Mockingbird by Harper LeeThe Diary of a Young Girl by Anne FrankTolkien On Fairy-stories by J.R.R. TolkienFahrenheit 451 by Ray Bradbury
Books That Everyone Should Read At Least Once
31,793 books — 120,925 voters
The Hitchhiker’s Guide to the Galaxy by Douglas AdamsThe Chronicles of Narnia by C.S. LewisAnne of Green Gables by L.M. MontgomeryTo Kill a Mockingbird by Harper LeeThe Book Thief by Markus Zusak
Best Books Ever
76,725 books — 285,358 voters

The Giver by Lois LowryA Wrinkle in Time by Madeleine L'EngleTo Kill a Mockingbird by Harper Lee
Best Young Adult Books
13,133 books — 80,205 voters

Memories, Dreams, Reflections by C.G. JungIllusions by Richard BachAlcoholics Anonymous by Alcoholics AnonymousNight by Elie Wiesel
Best Books of the 20th Century
7,899 books — 49,787 voters
Best Books For Writers
133 books — 117 voters