“Although there have been several authoritative (and relatively impartial) bios of the occultist Aleister Crowley published in the last decade, in my opinion there is one that is definitely a cut above the rest. This would be Perdurabo by Richard Kaczynski, PhD. As The definitive biography of the founder of modern magick, Kaczynski's revised and expanded edition of his 2002 offering is tirelessly researched (20 years!), highly detailed and loaded with photos, many of which are quite rare.”<br> –Toolband.com, official website of rock band TOOL<br>  <br> “Richard Kaczynski’s Perdurabo: the Life of Aleister Crowley is the one biography that is absolutely necessary for anyone who wishes to know more about one of the most creative, seminal, and misunderstood figures of the last hundred years.”<br> –David Tibet, founder of Current 93<br>  <br> A brilliant essayist, a superior poet, and an extraordinary artist, mountaineer, and explor