The Gods of Mars by Edgar Rice Burroughs
Pre-Tolkien Fantasy
382 books — 367 voters

Stranger in a Strange Land by Robert A. Heinlein
Best Science Fiction of the 20th Century
603 books — 488 voters
The Martian by Andy Weir
Best Science Fiction of the 21st Century
1,120 books — 9,064 voters

The Hitchhiker’s Guide to the Galaxy by Douglas Adams
Best Science Fiction
3,831 books — 7,612 voters
1984 by George Orwell
Best Dystopian and Post-Apocalyptic Fiction
3,987 books — 26,600 voters

The Sword of Shannara Trilogy by Terry Brooks
The Best Epic Fantasy (fiction)
4,618 books — 26,743 voters
The Hobbit, or There and Back Again by J.R.R. Tolkien
Best Books of the 20th Century
7,877 books — 49,822 voters

The Name of the Wind by Patrick RothfussGoodnight Moon by Margaret Wise BrownHarry Potter and the Sorcerer's Stone by J.K. RowlingIt by Stephen  KingThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas Adams
Best Books Ever
78,171 books — 291,562 voters