Using both clinical data and a variety of case studies, esteemed anger researchers Raymond DiGiuseppe and Raymond Chip Tafrate argue for a new diagnostic classification, Anger Regulation and Expression Disorder, that will help bring about clinical improvements and increased scientific understanding of anger. After situating anger in both historical and emotional contexts, they report research that supports the existence of several subtypes of the disorder and review treatment outcome studies and new interventions to improve treatment. The first book that fully explores anger as a clinical phenomenon and provides a reliable set of assessment criteria, it represents a major step towards establishing the clear definitions and scientific basis necessary for assessing, diagnosing, and treating anger disorders.