Gödel, Escher, Bach by Douglas R. HofstadterFermat's Enigma by Simon SinghFlatland by Edwin A. AbbottThe Code Book by Simon SinghZero by Charles Seife
Best Books About Mathematics
465 books — 683 voters
Introduction to Algorithms by Thomas H. CormenStructure and Interpretation of Computer Programs by Harold AbelsonThe C Programming Language by Brian W. KernighanThe Art of Computer Programming, Volumes 1-3 Boxed Set by Donald Ervin KnuthThe Pragmatic Programmer by Andy   Hunt
Essential Books of Computer Science
208 books — 329 voters

Accelerando by Charles StrossA Fire Upon the Deep by Vernor VingeDiaspora by Greg EganPermutation City by Greg EganAltered Carbon by Richard K. Morgan
Transhuman Science Fiction
162 books — 200 voters
The Devil in the White City by Erik LarsonFreakonomics by Steven D. LevittA Short History of Nearly Everything by Bill  BrysonGuns, Germs, and Steel by Jared DiamondOutliers by Malcolm Gladwell
Best Non-Fiction (no biographies)
6,416 books — 8,202 voters

A Short History of Nearly Everything by Bill  BrysonA Brief History of Time by Stephen W. HawkingCosmos by Carl SaganThe Selfish Gene by Richard DawkinsGuns, Germs, and Steel by Jared Diamond
Best Science Books - Non-Fiction Only
1,970 books — 3,656 voters
Ender’s Game by Orson Scott CardDune by Frank Herbert1984 by George OrwellFahrenheit 451 by Ray BradburyBrave New World by Aldous Huxley
Best Science Fiction & Fantasy Books
8,819 books — 26,075 voters

Ulysses by James JoyceFinnegans Wake by James JoyceThe Sound and the Fury by William FaulknerMoby-Dick or, The Whale by Herman MelvilleGravity’s Rainbow by Thomas Pynchon
Most Difficult Novels
601 books — 2,064 voters