According to United States Grand Lodge:
O.T.O. has long worked in close alliance with the A∴A∴, which first proclaimed the Law of Thelema to the world. The A∴A∴ is a teaching, testing, and initiatory system dedicated to the personal spiritual advancement of its individual members. Within A∴A∴ all services are rendered free of charge, and no social activities are held. O.T.O. and A∴A∴ have jointly issued the journal The Equinox since 1912 ev, now in its fourth volume.
Although they are distinctly separate organizations, neither including nor subordinate to the other, O.T.O. has historically assisted A∴A∴ with practical matters that lie outside the latter’s primary mission, which is purely spiritual in nature.
Aspirants to the A∴A∴ may write to:
London WC1N 3XX ENGLAND