Anyone can purchase Zamorano Club publications and attend its annual lecture. Formal membership, however, is subject to certain rules and restrictions. The Zamorano Club of Los Angeles is a private bibliophile society, which means that candidates cannot apply for membership but must be nominated. Nominations are based on a candidate's personal and/or professional commitment to books as demonstrated by achievement as a collector, dealer, librarian, or in some other bookish pursuit. Prospective candidates must be proposed in writing by a Club member and supported by a letter of recommendation from a second member. By tradition, candidates play no direct role in this process. However, those interested in membership are urged to inquire among fellow collectors, professional colleagues, and/or dealers with whom they regularly do business. Some of these may be Zamorano members and be willing to sponsor membership in the Club.