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.

More mistruth and rumor has circulated about Aleister Crowley than perhaps any other figure in recent history. When the reporter Henry Hall introduced him to readers of the New York World Sunday Magazine, he wrote, "Some said that he was a man of real attainments, others that he was a faker. All agreed that he was extraordinary." Crowley openly defied social conventions, challenging people to examine what they really believed, and why they believed it. He confronted blind faith with rational skepticism. Yet he likewise challenged the skeptic with scientific illuminism, a systematic approach to spirituality that he described as "The method of science, the aim of religion."