This text is essential to anyone interested in or a member of the Ordo Templi Orientis. It is the book that contains much of what is appropriately called the "Blue Equinox Model" of the O.T.O., which will not manifest unless its membership educates itself on what that means.

This is also a fantastic book for non-member Thelemites and occultists in general. Achad's "A Master of the Temple" is an extremely helpful and revealing description of the path of the Aspirant.

If you are interested in Aleister Crowley, the O.T.O., Thelema, or the occult I highly, highly recommend this book, as well as the rest of the Equinox series. Forget D.J. Conway; forget Silver Ravenwolf; forget Laurie Cabot; forget Scott Cunningham; forget Raymond Buckland; forget Konstantinos; forget Raven Grimassi; forget all of the fluff and fodder. If you want serious, adult, disciplined occultism, Crowley is your man.