Sex Magick, the practice of utilizing sexual energy and sacred sex rituals as a potent force to reach higher states of consciousness, has been cloaked in secrecy for centuries. Some scholars believe that the practice can be traced back to Jesus and Mary Magdalene, and was later passed down as a Secret Doctrine through many esoteric orders, from the Knights Templar to the Rosicrucian's, the Freemasons, and finally the O.T.O. 20th century English occultist, mystic, ceremonial magician, and O.T.O. leader Aleister Crowley believed that sexual magick was the key to unlocking the secrets of the universe. He dedicated the entire second half of his life to exploring its mysteries. Sex Magick presents the bulk of Crowley's written works on the subject including: The Gnostic Mass, Energized Enthusiasm, Grimorium Sanctissimum, Star Sapphire, Liber Ash, Liber Chath, and Liber Stellae Rubeae. Sex Magick, is the third volume in Weiser’s The Best of the Equinox series, curated by scholar and U.S. Deputy Grandmaster General of the O.T.O., Lon Milo DuQuette, which offers the best of Crowley’s material from both in-print and out-of-print sources.