An annual celebration of the finest short form science fiction of the past year, editors David G. Hartwell and Kathryn Cramer's Year's Best science fiction anthologies are widely acclaimed and eagerly awaited—and Year's Best SF 15 lives up magnificently to its name! Featuring thrilling new tales by such speculative fiction luminaries as Stephen Baxter, Gene Wolfe, Nancy Kress, Geoff Ryman, Bruce Sterling, and a host of others, Year's Best SF 15 opens the door into a universe of wonders.