Twenty-First Century Science Fiction is an enormous anthology - 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 favourites 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.