The First Fifteen Lives of Harry August by Claire North
Best Time Travel Fiction
1,954 books — 5,238 voters

Solaris by Stanisław Lem
Big Dumb Objects
68 books — 77 voters
The Martian by Andy Weir
Best Technothrillers Ever
684 books — 995 voters

The Road by Cormac McCarthyThe Stand by Stephen        King
Best Dystopian and Post-Apocalyptic Fiction
3,736 books — 25,968 voters
Rendezvous with Rama by Arthur C. ClarkeRingworld by Larry NivenWar of the Maps by Paul McAuley
Sci Fi Mega-Structures
68 books — 7 voters

The Outsider by Stephen        King
Best Books of 2018
1,650 books — 2,957 voters
Modern Operating Systems by Andrew S. Tanenbaum
Essential Programming Books
183 books — 525 voters

The First Fifteen Lives of Harry August by Claire North
The Best Time Travel Books of All Time
813 books — 1,684 voters
The Martian by Andy Weir2001 by Arthur C. Clarke
Believable Sci-Fi books.
26 books — 12 voters

The Stand by Stephen        KingThe Road by Cormac McCarthyI Am Legend and Other Stories by Richard MathesonSwan Song by Robert McCammon
Best Post-Apocalyptic Fiction
1,243 books — 3,409 voters

Wool Omnibus by Hugh HoweyLeviathan Wakes by James S.A. CoreyThe Road by Cormac McCarthyThe Martian by Andy Weir
Best Science Fiction of the 21st Century
1,203 books — 8,942 voters