Aleister Crowley's appeal on the level of popular culture has been well catered for by a number of biographies that have appeared in recent years, but the more intellectual side to him, which is equally fascinating, has not received so much serious treatment. Crowley, a Modern Master is neither an account of his life, nor a straightforward presentation of his teaching, but an attempt to place him clearly in the context of modern ideas as well as a number of older traditions.