This book presents a detailed and comprehensive critical analysis of evidence on adolescent research from leading international scholars. It explores the prevalence, nature, and trend of juvenile delinquency among Koreans as well as various western countries. It provides information on the socio-cultural contexts related to juvenile delinquency, aggression and violent behaviour among adolescents, substance abuse and delinquency, intra-familial child abuse in South Korea and other western countries. The authors also suggest these problems as a major social issue and present these issues in Korea and its cross-cultural comparison. This book is an ideal textbook for those who wish to explore the nature, trend, prevalence of juvenile delinquency and its cross-cultural comparison.