The Long Way to a Small, Angry Planet by Becky ChambersBabel-17 by Samuel R. DelanyFugitive Telemetry by Martha Wells
Most Under-rated Science Fiction
2,199 books — 2,718 voters
A Clockwork Orange by Anthony Burgess
Best Science Fiction of the 20th Century
752 books — 498 voters

The Hitchhiker's Guide to the Galaxy by Douglas AdamsFoundation by Isaac AsimovBrave New World by Aldous HuxleyI, Robot by Isaac AsimovSlaughterhouse-Five by Kurt Vonnegut Jr.
Best Science Fiction
3,955 books — 8,224 voters
Foundation by Isaac AsimovThe Ultimate Hitchhiker’s Guide to the Galaxy by Douglas AdamsSlaughterhouse-Five by Kurt Vonnegut Jr.I, Robot by Isaac AsimovNeuromancer by William Gibson
Best Science Fiction & Fantasy Books
8,932 books — 26,303 voters

A Stitch in Time by Andrew Jordt Robinson
Star Trek Books That Don't Actually Suck
213 books — 127 voters
Spock's World by Diane Duane
Best Star Trek Books
398 books — 279 voters

The Darkness Outside Us by Eliot SchreferUnder the Whispering Door by T.J. KluneWinter's Orbit by Everina Maxwell
2021 Queer SFF
234 books — 526 voters
The Left Hand of Darkness by Ursula K. Le GuinThe Long Way to a Small, Angry Planet by Becky ChambersThe House in the Cerulean Sea by T.J. KluneGideon the Ninth by Tamsyn Muir
LGBTQ Science Fiction and Fantasy
2,090 books — 1,983 voters

The Long Way to a Small, Angry Planet by Becky ChambersAll Systems Red by Martha Wells
Excellent Space Opera
1,171 books — 4,002 voters
The Book Thief by Markus ZusakThe Lightning Thief by Rick RiordanThe Hitchhiker's Guide to the Galaxy by Douglas AdamsA Clockwork Orange by Anthony BurgessThe Last Olympian by Rick Riordan
Best Books Ever
80,149 books — 298,708 voters