This is my subjectively curated list of science fiction classics from the very roots of the genre to the turn of the millennium. Most of these I have read, but some are well-regarded classics on my list of books to read. I tried to throw in some surprises for the hardened sci-fi nerds to contemplate. Looking for Fantasy novels? Check out this list:
Top 33 Fantasy Classics.
I have divided the books into three categories: Space Travel, Dystopian and Post-apocalyptic, and Speculative Fiction for those I couldn't find a more specific category for. Many would fit into more than one category, but I didn't repeat so as not to bore you. I also didn't choose more than one book from the same author, or list a whole series instead of a single book. For the fantasy enthusiasts out there, I'll compile a separate list to be posted another day.
What would you have put on the list? How many of these have you read? Tell me in the comments!
Space Travel
A Wrinkle in Time - Madeleine

The Left Hand of Darkness - Ursula K. Le Guin

Slaughterhouse-Five - Kurt Vonnegut


Ender's Game - Orson Scott Card