Richard Kaczynski, PhD, is the author of Mind Over Magick: The Psychology of Ritual Magick, Perdurabo: The Life of Aleister Crowley, Revised and Expanded Edition and The Weiser Concise Guide to Aleister Crowley. He has been a student of the Western hermetic tradition since 1977, and he has lectured internationally on these topics since 1990. Learn more at Richard-Kaczynski.com.