The Hitchhiker’s Guide to the Galaxy by Douglas Adams
Best Books of the Decade: 1970s
1,955 books — 1,879 voters
1984 by George Orwell
Best Books of the Decade: 1940s
819 books — 1,144 voters

One Flew Over the Cuckoo’s Nest by Ken KeseyTo Kill a Mockingbird by Harper Lee
Best Books of the Decade: 1960s
1,360 books — 1,778 voters
Harry Potter and the Sorcerer'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
3,371 books — 9,454 voters

The Catcher in the Rye by J.D. Salinger
Best Books of the Decade: 1950s
1,182 books — 1,509 voters
Siddhartha by Hermann Hesse
Best Books of the Decade: 1920s
765 books — 1,130 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
7,689 books — 14,194 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
7,188 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 Sorcerer's Stone by J.K. RowlingOne False Move by Harlan Coben
Best Books of the Decade: 1990s
3,129 books — 3,679 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
904 books — 1,254 voters

Watchmen by Alan             Moore
Best Books of the Decade: 1980s
2,260 books — 2,432 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
76,526 books — 284,655 voters