The Hitchhiker’s Guide to the Galaxy by Douglas Adams
Best Books of the Decade: 1970s
1,936 books — 1,870 voters
1984 by George Orwell
Best Books of the Decade: 1940s
835 books — 1,141 voters

One Flew Over the Cuckoo’s Nest by Ken KeseyTo Kill a Mockingbird by Harper Lee
Best Books of the Decade: 1960s
1,351 books — 1,776 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
3,245 books — 9,381 voters

The Catcher in the Rye by J.D. Salinger
Best Books of the Decade: 1950s
1,190 books — 1,502 voters
Siddhartha by Hermann Hesse
Best Books of the Decade: 1920s
766 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
7,674 books — 14,009 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
7,224 books — 28,362 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
3,141 books — 3,668 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
905 books — 1,249 voters

Watchmen by Alan             Moore
Best Books of the Decade: 1980s
2,252 books — 2,422 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
74,783 books — 277,555 voters