Developmental studies in criminology focus on psychological factors that influence the onset and persistence of criminal behavior, while life-course studies analyze how changes in social arrangements, like marriage, education, or employment, can lead to changes in offending. Though both perspectives are clearly concerned with patterns of offending and problem behavior over time, the literature on each is spread across various disciplines, including criminology and criminal justice, psychology, and sociology. This book offers the first comprehensive review of these two approaches. It aims to be the most authoritative resource on all issues germane to developmental and life-course criminologists. The book provides in-depth critical reviews of the development of offending, developmental and life-course theories, developmental correlates and risk/protective factors, life transitions and turning points, and viable developmental interventions.