A comprehensive guide to the history and practice of Angular Magic "I recommend Infernal Geometry and the Left-Hand Path: The Magical System of the Nine Angles to those interested in infernal or sacred geometry and have been on the left-hand path for some time. It is not a beginner’s book and the reader should have some prior knowledge of the occult and magick before performing any of the rituals. It can also be used as a scholarly book, for those who don’t want to perform the rituals, but want to learn about the subject matter."