David Brin, The PostmanAlthough I am in no way a Conservative, I've read and enjoyed all of these. The list author says the books "raise questions for conservatives or develop ideas from which conservatives can learn." I find the list and that description a bit confusing, because there are so many science fiction books from which conservatives could learn. Most of them, maybe. After my experiences with conservatives insisting that the Harry Potter books were converting The Kids to witchcraft, I'd argue that conservatives could learn from any book which exercises the imagination.
Philip K. Dick, Do Androids Dream of Electric Sheep?
William Gibson and Bruce Sterling, The Difference Engine
Robert Heinlein, Starship Troopers
Joe Haldeman, The Forever War
Aldous Huxley, Brave New World
Robert E. Howard, Conan stories
H.P. Lovecraft, anything really, but particularly the “Cthulhu cycle”
Walter M. Miller, Jr., A Canticle for Leibowitz
Neal Stephenson, Snow Crash
The books are worth reading no matter your political leanings.
HT: SF Signal