Aleister Crowley, born Edward Alexander Crowley, (12 October 1875 - 1 December 1947) was an English occultist, prolific writer and poet, mystic, astrologer, drug experimenter, hedonist, aficionado of chess and mountain climbing, sexual revolutionary and social critic. He is perhaps best known today for his occult writings, especially The Book of the Law, the central sacred text of Thelema. Crowley was also an influential member in several occult organizations, including the Golden Dawn, the Argenteum Astrum, and Ordo Templi Orientis (O.T.O.). Crowley gained much notoriety during his lifetime, and was famously dubbed "The Wickedest Man In the World."
A complete dictionary of the correspondences of all magical elements, reprinted with extensive additions, making it the only standard comprehensive book of reference ever published. It is to the language of Occultism what Webster or Murray is to the English language.
