The award-winning, best-selling author of Dhalgren and Nova, Samuel R. Delany is established as a titan of science fiction. Here his Nebula Award-winning title story and the Nebula and Hugo Award-winning Time Considered as a Helix of Semi-precious Stones' are collected alongside virtually all of his short fantasy and science fiction, including four previously uncollected stories. Meticulous and beautiful, these fifteen tales of tomorrow have much to say about today. 'The most interesting writer of science fiction today' - New York Times Book Review'