In addition to the fascinating biographical sketch drawn by Richard Kaczynski, author of the classic biography Perdurabo, this book offers Crowley's teachings in his own words. A carefully chosen series of his instructions for concentration, meditation, magick, invocation, even sex magick are included. Crowley's descriptions of the teaching Orders A:.A:. and OTO are presented, along with the Creed of EGC. In addition, a suggested reading list of Crowley's "top-eleven" most important books is enhanced by an extensive bibliography for further in-depth research. This is the first and only introductory book that does not pretend to "improve" upon the Master's writings, but attempts to showcase them into a coherent introduction to his spiritual system.