Michael Constantine Psellus (1018-1178 C.E.) was one of the most notable writers and philosophers of the Byzantine era, the driving force behind the university curriculum reform designed to emphasize the Greek classics.

This essential book delves into the life and scholastic contributions of Psellus. Most importantly, it explains exactly how the ancient Byzantines perceived the nature of Daemons—a critical component to truly understanding The Key of Solomon, and other classic texts on magical Hermetic knowledge.