The Unknown God is the first documentary study of Thelema, a twentieth-century religious movement in the "magical" family, founded by the occultist, poet, and prophet of a new age of personal freedom, Aleister Crowley (1875--1947). Martin P. Starr tells the history of the movement through the biography of its leader, Wilfred Talbot Smith (1885--1957), who took up Crowley's plans for organizations to teach the latter's methods in Western and Eastern...