O.T.O. U.S.A. Library
Our Most Popular Documents
Liber AL vel Legis (The Book of the Law)
This book is the foundation of the New Æon, and thus of the whole of our Work.
Liber CI (Liber 101)
An open letter to those who may wish to join the Order.
A Memorandum Regarding Liber CI
A clarification by US Grand Lodge Grand Master Sabazius X° on the applicability of Liber CI to the present day.
Liber CXCIV (Liber 194)
An intimation with reference to the Constitution of the Order.
Liber XV (Liber 15)
The Gnostic Mass. The central ritual of the O.T.O.
OTO and A∴A∴ Libri
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Aleister Crowley, Baphomet XI°