The Concept of Evil is dedicated to the analysis of the concept of evil. The term "evil" is used widely in ordinary language and yet philosophers have disagreed on what, if anything, distinguishes an evil act from a wrong act or an evil person from a bad one. Is "evil" a distinct and important moral category? Which agents and acts can and should be classified as "evil"? In which areas of practice does evil arise? These questions indicate three essential categories that belong to a thorough analysis of the concept of evil: meta-evil, the nature of evil, and applied evil. The articles presented in this volume provide insight into these categories.