Surveys find that nearly 7 in 10 adults in the US believe in angels. But what are angels supposed to be? What is the difference between angels, demons, genies, and ghosts? Why do cherubs look like the Roman pagan god Cupid? John Hamer of Toronto Centre Place will explore early Biblical understandings of angels, evolution and elaboration of the idea in extra-Biblical apocalypses like the Book of Enoch, and later theological formulations by Christian philosophers including Pseudo-Dionysius the Areopagite.