The Hitchhiker’s Guide to the Galaxy by Douglas Adams
Best Books of the Decade: 1970s
1,928 books — 1,874 voters
1984 by George Orwell
Best Books of the Decade: 1940s
830 books — 1,142 voters

One Flew Over the Cuckoo’s Nest by Ken KeseyTo Kill a Mockingbird by Harper Lee
Best Books of the Decade: 1960s
1,349 books — 1,778 voters
Harry Potter and the Philosopher’s Stone by J.K. RowlingA Game of Thrones by George R.R. MartinDeal Breaker by Harlan CobenThe Fellowship of the Ring by J.R.R. TolkienShelter by Harlan Coben
Best Series
3,329 books — 9,394 voters

The Catcher in the Rye by J.D. Salinger
Best Books of the Decade: 1950s
1,180 books — 1,506 voters
Siddhartha by Hermann Hesse
Best Books of the Decade: 1920s
765 books — 1,133 voters

Live Wire by Harlan CobenThe Martian by Andy WeirGone Girl by Gillian FlynnThe Slight Edge by Jeff OlsonDefending Jacob by William Landay
Best Books of the Decade: 2010s
7,644 books — 14,051 voters
Harry Potter and the Deathly Hallows by J.K. RowlingThe Book of Basketball by Bill SimmonsHarry Potter and the Half-Blood Prince by J.K. RowlingA Storm of Swords by George R.R. MartinJust One Look by Harlan Coben
Best Books of the Decade: 2000s
7,203 books — 28,366 voters

Harry Potter and the Prisoner of Azkaban by J.K. RowlingA Game of Thrones by George R.R. MartinHarry Potter and the Philosopher’s Stone by J.K. RowlingOne False Move by Harlan Coben
Best Books of the Decade: 1990s
3,140 books — 3,671 voters
The Hobbit, or There and Back Again by J.R.R. TolkienOf Mice and Men by John Steinbeck
Best Books of the Decade: 1930s
903 books — 1,251 voters

Watchmen by Alan             Moore
Best Books of the Decade: 1980s
2,249 books — 2,428 voters
Harry Potter and the Deathly Hallows by J.K. RowlingThe Book of Basketball by Bill SimmonsHarry Potter and the Half-Blood Prince by J.K. RowlingLive Wire by Harlan CobenA Storm of Swords by George R.R. Martin
Best Books Ever
75,305 books — 279,386 voters