N SPACE - FIRST HARD COVER. New York: Tor Books, 1990. First Edition. 6 X 9. Hard Cover. Fine / Fine. ISBN: 0312850891. A retrospective collection from all phases of Niven's career. Has an into by Tom Clancy. Some of the stories here are classics, most have not previously been collected in book form. Niven's essays on the SF genre and commentaries on the stories make this collection a must for fans of Science Fiction.