Aggression and Other Disruptive Behavioral Challenges: Biomedical and Psychosocial Assessment and Treatment has 11 chapters and is well organized. Concepts are clearly defined. There is a series of helpful case illustrations and diagrams depicting the ways in which various influences on behavior interact to produce aggressive behavior, according to the MCC model. The first three chapters provide an overview of the research on aggression. In chapters 4 through 10, assessment and treatment are described, and critical concepts from the proposed model are elucidated. The chapter on sexual aggression, written by Dorothy Griffiths, is an important contribution, addressing some of the unique concerns related to clinical care of individuals with intellectual disabilities and sexual disorders. In chapter 9, Betsy Benson describes the importance of teaching new skills, a departure from the traditional focus on decelerating aggression. The emphasis here is on developing strategies to help individuals experience ongoing success in responding to stress in more adaptive ways. In general, people with intellectual disabilities and aggression are frequently found to have significant social skill deficits. The book emphasizes the importance of recognizing aggression as a learned response that occurs in a specific psychosocial context.