Created by Mark Verheiden, APA-5 was a comics-oriented apa launched in the early 1970s. It also featured discussion of science fiction and fantasy in books, television, and movies. Early contributors included Mark Montchalin, Kurt Erichsen, Chris Warner, and Dale Nelson, all, at that time, of Oregon. Soon members more or less associated with Palo Alto, California, joined, including Jim Vadeboncoeur, Ron Harris, Art Scott, and Robert Napier. Several members have become well-known in entertainment media.
Verheiden became a television writer and series co-producer. Frank Miller, who eventually would become famous for his comics work on Daredevil and Batman, was a member in his teens, appearing in APA-5 with comic stories printed from ditto masters. One series by Miller, Call It Karma, featured a Kojak-type character. Paul Chadwick was another member who achieved much recognition, such as an Eisner Award for Best Writer/Artist in comics art in 1989. Chris Warner went on to draw comics for the Dark Horse line.
Some members may not have been very interested in comics, being more involved with topics such as Lovecraft or Robert E. Howard (e.g. Loay Hall and Terry Lee Dale), authors around whom apas would eventually be created, such as The Esoteric Order of Dagon and REHupa.