Octavo, cloth. First edition. Winner of the 1968 Hugo award for best novel. 1967 Nebula nominee. Anatomy of Wonder (2004) II-1310. Gerber, Utopian Fantasy (1973), p. 162. Survey of Science Fiction Literature III, pp. 1251-56. A fine copy in bright, fine dust jacket with a touch of wear to lower right front corner, tiny rubbed spot on front panel, two light horizontal blue lines on the verso of the jacket (offset from a previous jacket protector) with slight bleed through, most noticeable on the rear panel. A very sharp, attractive copy. (#138555).