Despite some typographical errors and the fact that the editors chose the earliest instead of the latest rescensions of several books, this book is a worthy addition to the library of anyone truly interested in comparative Spirituality, even if they are not especially interested in Aleister Crowley's Thelemic cultus. Aleister Crowley never surpassed his own Thelemic "holy books," about which he was uncharacteristically silent, especially the Book of the Heart Girt about by the Serpent and the Book of the Freed or the Blue Stone, which are as beautiful and profound as the greatest Spiritual literature of any time or people. Many will find some sections, especially the Book of the Law, disturbing, but closer scrutiny will reveal a deep penetration of many difficult Spiritual questions which are not satisfactorily resolved in many other religions, and a keen and penetrating insight into the brutalities of the 21st century, which mark the necessary Next Step in a transition to a new and a greater civilization. Now the Holy Books need to be reissued in a truly critical edition, with alternative readings, footnotes, appendices explaining all of the allusions, and a comprehensive book, chapter, and verse index.