The authors, all seasoned researchers, selected eight projects to report, and these reports form the substance of this volume. The chapters cover a wide range of preventive approaches, reflecting theories addressing individual and environmental risk factors thought to be contributing to substance abuse in adolescents. The target populations and the associated demonstration programs included African American adolescent girls ("Friend by PEERsuasion"), young Native American children (the Nee-Kon Project), inner-city African American families (the Safe Haven Program), Native American youths (the Logan Square Prevention Project), Asian American youths (Competence Through Transitions), urban middle schools and high schools serving predominantly Hispanic and African American students (the Urban Youth Connection Program), and a program to address the self-perception of personal and communal powerlessness of Native Americans.