Claire Singer's work offers a richly illustrated, concise historical and cultural exploration of the figure of the Devil from ancient to modern times. It begins with early dualistic religions in Persia, Babylonia, and India, discussing foundational figures such as Zoroaster and the origins of good-vs-evil cosmologies. Singer then navigates through key epochs like the Inquisition, witch trials, and alchemical traditions, highlighting how the demonic was personified and manipulated by religious and political forces. The study concludes with reflections on the 19th-20th century occult revival, analyzing how the Devil transforms from a feared theological figure into a cultural symbol.