I got more into the Wolfe books the more I read them. But there's a bit at the end of one of them where he threw in an author's post-script that went along the lines of "This came from the future. That's why there are words in it that no one can read. Because they haven't been invented yet." And that just annoyed me. It seemed so unecessarily pretentious.

There's also the Arthur C. Clarke serieses.

And bah! I wrote John M. Harrison. I actually mean M. John Harrison.

Oh, and there's always The Shape Of Things To Come. Can't go past that one for a historical documentation of the future.