All Our Yesterdays: an Informal History of Science Fiction Fandom in the Forties by Harry Warner Jr.
A lovely informal volume covering clubs, conventions, fanzines, book collecting, and other related subjects.
Introduction by Wilson Tucker.
Chicago: Advent Publishers, Inc., 1972. ISBN: 0911682112. xxi, 336 pp. 8vo. 100+ illustrations. Very good. Paperback.