Book excerpt: This volume is the comprehensive synthesis of the empirical findings of seven important ongoing longitudinal studies of delinquency. It aims to examine the extent to which these studies answer the basic question of the origins of delinquent and criminal careers despite their varying guiding theories, methods, and settings. This book is an important resource for criminologists, psychologists, sociologists, and students on juvenile delinquency, criminology, developmental psychology, and deviant behavior.