Start with early science fiction.
Read We by Yevgeny Zamyatin from 1921
This book influenced some of the greatest writers of the 20th century.
Here is a good blog post about We: http://ieet.org/index.php/IEET/more/dvorsky20110405
Also read Frankenstein, one of the first science fiction books ever published - 1869
It is a free eBook on Google: http://books.google.com/ebooks/reader?id=2Zc3AAAAYAAJ&dq=we&as_brr=4&printsec=frontcover&output=reader
I have never read very much Science Fiction, unlike some of the people here on Less Wrong, and I think I would like to. At least, the few books I have read I enjoyed. I've read a couple of books from Asimov's Foundation Series, two Michael Crichton books, Twenty Thousand Leagues Under the Sea by Jules Verne, and an anthology of SciFi short stories (no really famous authors) that my dad owned.
That list looks very short. I just finished reading a fiction book, and am looking to start another. Recommendations? What are the two or three books I simply must read?