This authoritative title takes an academic approach to one of the most popular religious concepts of all time-angels and demons. Included is an in-depth examination of the characteristics and source texts on angels and demons in the three major Abrahamic religions as well as parallels in Eastern traditions, as is treatment of how these beliefs have developed and changed historically. Following is a discussion of possible scientific explanations of these beings-and how science has debunked certain aspects of belief in them. Also covered is the pervasiveness of angels and demons in the arts, literature, and popular culture.