The Collectors Club research library is one of the world's best storehouses of philatelic literature. It has more than 140,000 books, journals, auction catalogs, maps and other philatelic materials. A great emphasis has been placed on completion of periodical collections. The Club is indebted to the many volunteers and benefactors who have built the library to its present stature. The library is open on Wednesdays or by appointment.
Members can use it for quick fact-finding or more extensive scholarly research.
Most items in the collection may be borrowed by members for use at home. The Collectors Club Philatelist is a bimonthly periodical published for Club members. It contains scholarly articles by members, as well as details of regular meetings and discussions of business matters. The journal was originally established as a quarterly in 1922 and became a bimonthly publication in 1950. From time to time the Collectors Club has published handbooks and other literature.