Greg Egan. Agree with others in this thread that Permutation City is the most important. But Diaspora is not to be missed either. Egan's unique value prop is: crazy-thought-experiment sci fi (2D world with 2 time dimensions is his latest and is typical) but hard, harder than you can believe. Sci fi so hard, you don't find any cracks and are left thinking wait a minute ... This must be true then? Gene Wolfe. Book of t…
I liked Book of the New Sun in a pulpy way. I'm a huge sucker for dying earth settings, and it was great to read one of the originals.
I greatly enjoyed Zelazny's Amber series and have tried to get into some of his sci-fi, but failed. Perhaps it's time to give Lord of Light a third try.