The relationship between affective-emotional processes and aggressive behavior has been a central topic of scientific interest in the aggression literature for decades. Emotions are not merely epiphenomena of aggression: they can be triggers, amplifiers, moderators, or even ultimate goals of aggressive behavior. Insights into the functional relation between emotions and aggression are of theoretical relevance, and above all are crucial for finding solutions for efficient control, prevention, and reduction of aggression.This book brings together leading experts from fields such as social, personality, developmental, and physiological psychology, presenting state-of-art research on this relationship. The book describes assessment and treatment approaches, as well as theoretical concepts and research findings concerning the interconnections between emotions and aggression. The following main areas are covered: bibliometric analyses of psychological research on emotions and aggression; emotion-based motives and measures of aggression; anger and aggression; emotions and aggression in intergroup contexts; and, emotions and aggression from a developmental perspective.