Ordo Templi Orientis

William E. Heidrick Memorial Library

About the Library

Physical Library

U.S.G.L. maintains a physical library, dedicated the “William E. Heidrick Memorial Library”, which contains books, papers, and other materials of historical or technical interest.

The library catalog is available here.

Digital Library

U.S.G.L. offers a public digital library containing documents of interest to O.T.O. members, Thelemites, and scholars of the Western esoteric tradition.

There is also a private digital library available to all members who have an oto-usa.org google account.

Additionally, our Grand Master maintains a site called The Invisible Basilica of Sabazius which includes many of his essays, speeches, commentaries, and other useful material.

Local Body Publications

The Local Body Publication Secretary collects local body publications for archival purposes. Local bodies should send a copy (electronic preferred) of each issue of the local body’s publication (newsletter) to the Local Body Publication Secretary, the digital collection of publications is available here.