The Secret Teachings of All Ages: An Encyclopedic Outline of Masonic, Hermetic,: Being an Interpretation of the Secret Teachings concealed within the Rituals, Allegories, and Mysteries of all Ages, by Manly P. Hall (trade pb)

Manly P. Hall's 1928 volume assembles a vast storehouse of information on secret religions, organizations, and philosophies, including such diverse topics as the Masons, Rosicrucians, Qabbala, Alchemy, Tarot, Cyphers, Ceremonial Magic, Neo-Platonic Philosophy, Mystery Religions, and much more. A great starting point for those interested in learning more on these subjects.