Papus, in his customary succinct yet erudite style, introduces the reader to the major tenets of traditional occultism. A remarkable amount of information is packed into this little work. With chapter headings such as: Theory, Metaphysics, Logic, Moral, Aesthetics, Theodicy, Sociology, etc. This work touches upon all of the fundamentals of occult thought, including traditional history, practical occultism, and social reform. The beginner will find this to be a particularly useful guide while navigating his or her studies. There is much to be found here that is normally only introduced within the traditional initiatic fraternities and societies.