The Mammoth Book of Best New Science Fiction: No. 12 by Gardner Dozois
This is the 12th edition of this anthology of new science fiction that comprises soft, hard and cyberpunk, anthropological, ecological, military or adventure-orientated short stories. It features writers such as Tanith Lee, Ursula LeGuin, Greg Egan, Cory Doctorow, Robert Charles Wilson and Michael Swanwick.