WB, if you mean what I think you mean by āspecualtive fictionā, then you should read Player One Ready, esp if you are a fan of sevenities nostalgia.
I have read a lot of books in this genre, itās probably one of my favorite types of reading, alternative futures, speculating on what will comeā¦
Neal Stephenson, anything, older stuff is better
David Mitchell: Cloud Atlas
Maraget Atwood: Oryx and Crake, The Year of the Flood, vol three pending
Dexter Palmer: Dream of Perpetual Motion
Paulo Bacigalupi: Windup Girl
Vernor Vinge: the one with the rabbit on the coverā¦some of his stuff is hard to get atā¦
Take a look at this site, the awards have listing of authors and books by years, too many good choices: http://www.isfdb.org/wiki/index.php/Awards
Wierd stuff, mind bending authorsā¦
China Mieville, one of my favorite authors, anything he writes is incredible
James Joyce, anything, Toothfairy is especially edgy
Charles de Lint, fantasy, some is mooshy, but thereās a lot of good in there
Jonathan Carroll, Outside the Dog Museum
Neil Gaiman, one of my favs, start with American Gods
Michael Chabon, anything, he won the Pulitzer for a good reason
Chuck Palahniuk, Fight Club, thereās only one ruleā¦
Tim Powers, good stuff no matter what you choose