Old Man's War by John ScalziStarship Troopers by Robert A. HeinleinRevelation Space by Alastair ReynoldsGateway by Frederik Pohl
Excellent Space Opera
972 books — 3,516 voters
Hyperion by Dan SimmonsStartide Rising by David BrinThe Ringworld Engineers by Larry NivenThe Uplift War by David Brin2010 by Arthur C. Clarke
Classic Science Fiction - 1980-1989
302 books — 260 voters

The Forever War by Joe HaldemanRingworld by Larry NivenThe Dispossessed by Ursula K. Le GuinGateway by Frederik PohlThe Lathe of Heaven by Ursula K. Le Guin
Classic Science Fiction - 1970-1979
272 books — 245 voters
Red Planet by Robert A. HeinleinSpace Cadet by Robert A. HeinleinEarth Abides by George R. StewartLest Darkness Fall by L. Sprague de Camp
Classic Science Fiction - 1940-1949
90 books — 119 voters

Fahrenheit 451 by Ray BradburyI, Robot by Isaac AsimovThe Foundation Trilogy by Isaac AsimovThe Martian Chronicles by Ray BradburyStarship Troopers by Robert A. Heinlein
Classic Science Fiction - 1950-1959
276 books — 273 voters
Dune by Frank HerbertFoundation by Isaac AsimovSlaughterhouse-Five by Kurt Vonnegut Jr.Do Androids Dream of Electric Sheep? by Philip K. DickI, Robot by Isaac Asimov
Best Science Fiction & Fantasy Books
8,255 books — 24,503 voters

Accelerando by Charles StrossSpin by Robert Charles WilsonSingularity Sky by Charles StrossRiver of Gods by Ian McDonaldThe Atrocity Archives by Charles Stross
Best Science Fiction of the 21st Century
1,164 books — 8,899 voters
Stand on Zanzibar by John BrunnerDune by Frank HerbertDo Androids Dream of Electric Sheep? by Philip K. DickThe Moon Is a Harsh Mistress by Robert A. HeinleinThe Left Hand of Darkness by Ursula K. Le Guin
Classic Science Fiction - 1960-1969
292 books — 245 voters