In this book, Regardie reveals the secrets of real magic. He begins with an explanation of what magic is and what magic is not. He explains that it is a spiritual study and practice which, along with forms of yoga, forms the two branches of the tree that is mysticism. Then he explains the tools of the magician, what they mean, and how to use them. He explains the techniques of evocation and invocation, skrying, and astral travel. He shows how the Qabalah unites everything. He even gives a description of the secrets of sexual magick.