The Year's Best Science Fiction: Twenty-First Annual Collection

by Jack Skillingstead, Paolo Bacigalupi, M. Shayne Bell, William Barton, Nancy Kress, Gardner Dozois, Paul Melko, Judith Moffett, Geoff Ryman, Charles Stross, Harry Turtledove, Kristine Kathryn Rusch, Nicholas A. DiChario, Steven Popkes, Vernor Vinge, John C. Wright, Kage Baker, Dominic Green, Paul Di Filippo, John Varley, John Kessel, William Shunn, Terry Bisson, Robert Reed, Terry Dowling, Michael Swanwick, Walter Jon Williams, James Van Pelt, Howard Waldrop, Geoffrey A. Landis Hardcover 2004