*Twenty-First Century Science Fiction* is an enormous anthology of short stories—close to 250,000 words—edited by two of the most prestigious and award-winning editors in the SF field and featuring recent stories from some of science fiction’s greatest up-and-coming authors. David Hartwell and Patrick Nielsen Hayden have long been recognized as two of the most skilled and trusted arbiters of the field, but *Twenty-First Century Science Fiction* presents fans’ first opportunities to see what their considerable talents come up with together, and also to get a unique perspective on what’s coming *next* in the science fiction field. The anthology includes authors ranging from bestselling and established favorites to incandescent new talents including Paolo Bacigalupi, Cory Doctorow, Catherynne M. Valente, John Scalzi, Jo Walton, Charles Stross, Elizabeth Bear, and Peter Watts, and the stories selected include winners and nominees of all of the science fiction field’s major awards. One of *Publishers Weekly* ‘s Best Science Fiction Books of 2013