New York, Lippincott, 1959. First edition, first impression. Hardback. A very good copy. A highlight of science fiction, and literature in general. The first hardback edition (the story was published earlier in the magazines and anthologies, in three separate parts - the novel can be considered a fix-up). A wonderful book and the winner of the 1961 Hugo award. The jacket is price-clipped, with a little wear to the spine tips. Tape marks on the endpapers, but otherwise a very nice book. Cover art by Milton Glaser [9185, Hyraxia Books].