Noted for its multisystemic–ecological perspective, this accessible text and practitioner resource has now been revised and expanded with 60% new material. The book provides a comprehensive view of adolescent development and explores effective ways to support teens who are having difficulties. The authors examine protective and risk factors in the many contexts of adolescents' lives, from individual attributes to family, school, neighborhood, and media influences. Assessment and intervention strategies are illustrated with diverse case examples, and emphasize a social justice orientation. Useful pedagogical features include end-of-chapter reflection questions and concise chapter summaries.