The book represents an in-depth investigation of acquisition, cultivation, and transmission of divine mysteries in Jewish apocalyptic and mystical accounts by focusing on the developments found in early Enochic writings. These accounts deal both with revelations unveiled by God and angels to the patriarch Enoch and with illicit transmission of divine knowledge by the rogue group of the fallen angels, known as the Watchers. Orlov argues that the map of otherworldly knowledge revealed to Enoch inversely mirrors the map of illicit revelations given by the fallen Watchers to humankind. The...