Published in an edition of 500 for the 39th World Science Fiction Convention, Denver, 1981. Simak was the convention's guest of honor that year.
Includes appreciations by Isaac Asimov, Robert A. Heinlein, Jack Williamson, and Frederick Pohl.
San Francisco: Locus Press, 1981. First Edition. xxvii, 49 pp. 8vo. Odd and faint numeric notes on front cover. Very good. Staplebound.