Listmania!
So good they're not really Sci-Fi
Brave New WorldBrave New World by Aldous Huxley
Buy used from: £3.49
An all time classic
Bug Jack BarronBug Jack Barron by Norman Spinrad
Buy used from: £1.37
Gripping, absorbing, shocking: an overlooked masterpiece
Do Androids Dream Of Electric Sheep?Do Androids Dream Of Electric Sheep? by Philip K. Dick
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The book that inspired Blade Runner but, incredibly, even better
2001: A Space Odyssey2001: A Space Odyssey by Arthur C. Clarke
Buy new: £3.99 / Used from: £0.01
The book behind Kubrik's film though even more enigmatic
DuneDune by Frank Herbert
Buy new: £5.99 / Used from: £0.01
Infinitely better than the botched film: An epic with increasigly poor sequels
Stranger in a Strange LandStranger in a Strange Land by Robert A. Heinlein
Buy used from: £1.23
A child of its time (70's California), but still with merit