Magick In Theory And Practice, Castle Books, 1961. Hardcover. First Edition. Book condition: Very Good, Dust-cover: Very Good (tape along top and bottom edge no doubt to protect, remarkably intact with only minor fraying at edges). Aleister Crowley defined Magick as the art and science of causing changed to occur, in conformity with one’s own will. This is his handbook on Magick and a must have for students of the Craft. Some Sections Include: The Magical Theory of the Universe, The Principles of Ritual, The Formula of the Neophyte, Of the Banishing’s and the Purification, Of the Black Magick; of the Main Types of the Operations of Magickal Art; and of the Sphinx.