The Hero with a Thousand Faces
Published between 1959 and 1968, Campbell's four-volume work "The Masks of God" covers mythology from around the world, from ancient to modern. Where "The Hero with a Thousand Faces" focused on the commonality of mythology (the "elementary ideas"), the " Masks of God" books focus upon historical and cultural variations the monomyth takes on (the "folk ideas"). In other words, where "The Hero with a Thousand Faces" draws perhaps more from psychology, the " Masks of God" books draw more from anthropology and history. The four volumes of "Masks of God" are as follows: "Primitive Mythology", "Oriental Mythology", "Occidental Mythology", and "Creative Mythology".