The Cat Who Walks Through Walls by Robert A. HeinleinFeed by M.T. AndersonMatter by Iain M. BanksMore Than Human by Theodore SturgeonUnder the Dome by Stephen  King
Unforgettables
12,242 books — 8,078 voters
The Word for World Is Forest by Ursula K. Le GuinRingworld by Larry NivenThe Three Stigmata of Palmer Eldritch by Philip K. DickAbaddon’s Gate by James S.A. CoreyAbsolution Gap by Alastair Reynolds
Best Science Fiction & Fantasy Books
8,740 books — 25,694 voters

Forward the Foundation by Isaac AsimovThe Selection by Kiera CassTime Chain by Steven DeckerTimeline by Michael CrichtonA Closed and Common Orbit by Becky Chambers
What To Read Next
20,939 books — 24,995 voters
The White Dragon by Anne McCaffreyA Princess of Mars by Edgar Rice BurroughsChildren of Dune by Frank Patrick HerbertSlaughterhouse-Five by Kurt Vonnegut Jr.The Word for World Is Forest by Ursula K. Le Guin
Books With Unforgettable Characters
9,532 books — 8,830 voters

Pretties by Scott WesterfeldUnder the Dome by Stephen  KingRobopocalypse by Daniel H. WilsonWay Station by Clifford D. SimakDragonflight by Anne McCaffrey
Favorite Books
15,006 books — 10,660 voters
Dirk Gently's Holistic Detective Agency by Douglas AdamsThe Collapsing Empire by John ScalziCloud Atlas by David  MitchellDo Androids Dream of Electric Sheep? by Philip K. DickGemina by Amie Kaufman
Best Fantasy and Sci-Fi Books for Teens
1,155 books — 1,219 voters

And Another Thing... by Eoin ColferJurassic Park by Michael CrichtonOutlander by Diana GabaldonCloud Atlas by David  MitchellThe Dreaming Void by Peter F. Hamilton
Best Science Fiction Ever Written.
1,824 books — 4,131 voters
Rogue Protocol by Martha WellsFeed by M.T. AndersonAnd Another Thing... by Eoin ColferA Canticle for Leibowitz by Walter M. Miller Jr.Pretties by Scott Westerfeld
MUST READS!!!
15,276 books — 10,978 voters

The Stars, Like Dust by Isaac AsimovAnd Another Thing... by Eoin ColferThe Dreaming Void by Peter F. HamiltonInversions by Iain M. BanksWay Station by Clifford D. Simak
Must Read Books- Different Genres
15,012 books — 11,240 voters