House of Leaves by Mark Z. Danielewski
Best Books of the Decade: 2000s
7,197 books — 28,384 voters
Romeo and Juliet by William ShakespeareThe Great Gatsby by F. Scott FitzgeraldThe Chronicles of Narnia by C.S. LewisGreen Eggs and Ham by Dr. SeussThe Giving Tree by Shel Silverstein
Books That Everyone Should Read At Least Once
32,944 books — 125,082 voters

Lolita by Vladimir NabokovThe Chronicles of Narnia by C.S. LewisAtlas Shrugged by Ayn RandGreen Eggs and Ham by Dr. SeussUlysses by James Joyce
Best Books of the 20th Century
7,818 books — 49,884 voters
Ulysses by James JoyceThe Sound and the Fury by William FaulknerFinnegans Wake by James JoyceMoby-Dick or, The Whale by Herman MelvilleCrime and Punishment by Fyodor Dostoevsky
Most Difficult Novels
601 books — 2,066 voters

Crime and Punishment by Fyodor Dostoevsky
Best Books Ever
79,432 books — 296,122 voters
The Da Vinci Code by Dan    BrownAn Inconvenient Truth by Al Gore
The Worst Books of All Time
8,125 books — 19,914 voters