The question of a religious tradition lying behind the texts making up the Corpus Hermeticum (and related texts, such as the fragments preserved by Stobæus) has been of perennial interest to scholars ever since Ficino brought the Corpus onto the Latin-speaking stage. Christian Bull’s recent book (The Tradition of Hermes Trismegistus: The Egyptian Priestly Figure as a Teacher of Hellenized Wisdom. Religions in the Graeco-Roman World, 186. Leiden: Brill, 2018) is a new approach to this perennial question, and has been making some waves among the Hermetic cognoscenti. It has now received a review from papyrologist Korshi Dosoo.