So far I have the following guidebooks:
A Climber's Guide To Pinnacles National Monument, David Hummack, Sierra Club, 1955.
A Climber's Guide To Pinnacles National Monument, Steve Roper, The Ski Hut, 1966.
Pinnacles Climber's Guide, Chuck Richards, Recreational And Travel Enterprises, 1974.
A Rock Climbers Guide To Pinnacles National Monument, Paul G. Gagner, self-published, 1983.
Pinnacales Guide (sic), Elvin R. Johnson & Richard P. Cordone, La Siesta Press, 1984. Not really a climbing guidebook, but mentions climbing and has a section on it. It is interesting that the incorrect spelling of Pinnacles is repeated throughout the entire book.
Climber's Guide Pinnacles National Monument, Dave Rubine, Chockstone Press, 1991.
Climber's Guide Pinnacles National Monument, Second Edition, David Rubine, Chockstone Press, 1995.
A Climber's Guide To Pinnacles National Monument, Brad Young, self-published, 2007.
Are there any other guidebooks? I am aware that there are lists of climbs in the Sierra Club Yoddler prior to the Hammock guidebook and have a photocopy of one of these, but I do not really consider these guidebooks.