This is a study of the Hermetic literature focusing the seventeen treatises of the so-called Corpus Hermeticum, complemented by extents of many other “Philosophical Hermetic” treatises. That what are nowadays known as the Philosophical Hermetica, emerged as a product of a Graeco-Egyptian process of self-perception. In this book, the Hermetica will be treated as the result of cross-cultural exchange between Greek and Egyptian symbolic universes. Another approach of this book is a comparative analysis of how Hermetists from different ideological backgrounds dealt with the Hermetica as a common tool to consolidate their own system of beliefs as social discourses. The conflict of Christian, Pagan and Gnostic usages of Hermetic texts managed to drown this literature into a dispute for the monopoly of truth in Late Antiquity.