This book provides readers with a core psychological perspective on criminal behavior. It is ideal for individuals who are fascinated by human psychology, and those who are interested in understanding criminal behavior. In this book, readers will learn how to use psychological theories to understand criminal behavior, reflect on the development trajectory of offenders, understand how criminals handle information different from non-criminals, and contemplate on how social circumstances can contribute to law breaking. This book comprehensively introduces methods of understanding crime and delinquent behavior from a psychological perspective, and considers various criminal behaviors, including violent crime, sexual crime, juvenile crime, drug abuse and collective violence.