Volume One: Primordial Mythology. The author of such acclaimed books as The Hero with a Thousand Faces and The Power of Myth examines the primitive roots of mythology, examining them in the light of recent discoveries in archaeology, anthropology, and psychology.

Volume Two: Oriental Mythology. In the second volume of Joseph Campbell's magnum opus on comparative mythology, The Masks of God, this eminent mythologist presents us with the history of the gradual development of Asian mythology over five thousand years, leading to the formation of the outstanding religious systems of Egypt, Mesopotamia, India, China, and Japan. While Western religions are built on the opposition of good and evil, Eastern religions look to the paths to eternal life. Oriental Mythology details the path that the religions of the East took before acquiring the forms of expression and the way of thinking that they have today.

Volume Three: Occidental Mythology. In this section, Campbell examines the pagan beliefs of the Greeks, Romans, and Celts alongside the Abrahamic religions of Zoroastrianism, Judaism, Christianity, and Islam.

Volume Four: Creation Mythology. Volume Four examines the birth of modern individualistic mythology, which developed in Europe from the 12th century to the modern era of the 20th century.