Gareth Knight is one of the world's foremost authorities on ritual magic, the Western Mystery Tradition and Qabalistic symbolism. He trained in Dion Fortune's Society of the Inner Light, and has spent a lifetime rediscovering and teaching the principles of magic as a spiritual discipline and method of self-realisation.
He has written around forty books covering topics as diverse as Qabalah, history of magic, Arthurian legend, Rosicrucianism, Tarot, the Inklings (Tolkien, C.S.Lewis et al) and the Feminine Mysteries, as well as several practical books on ritual magic. He has lectured worldwide and is a regular contributor to Inner Light, the journal of the Society of the Inner Light.
The group founded by Gareth Knight in 1973 is now run by Wendy Berg and known as the Avalon Group.
This is easily one of the most interesting books I have ever read. It is clearly written, well organized, and espouses a philosophy of magik that embraces its many facets and many evolutions right through to the present. A cogent disambiguation of the subject, it also serves to illuminate many other things besides, including a brief and relevant history of philosophy, religion, and modern psychology. This is definitely worth a read.