In contradistinction to the many monographs and edited volumes devoted to historical, cultural, or theological treatments of demonology, this collection features newly written papers by philosophers and other scholars engaged specifically in philosophical argument, debate, and dialogue involving ideas and topics in demonology. The contributors to the volume approach the subject from the perspective of the broadest areas of Western philosophy and feature a plurality of religious, cultural, and theological views on the nature of demons from both Eastern and Western thought, in addition to views that may diverge from these traditional roots.