Book excerpt: Includes: Drug Abuse Prevention through Family Based Interventions: Future Research; Familial Factors and Substance Abuse: Implications for Prevention; Family-Focused Substance Abuse (SA) Prevention: What Has Been Learned from Other Fields; Scientific Findings from Family Prevention Intervention Research; A Universal Intervention for the Prevention of SA: Preparing for the Drug-Free Years; Selective Prevention Interventions: The Strengthening Families Program; Parental Monitoring and the Prevention of Problem Behavior: A Conceptual and Empirical Reformulation; and Family Measures in SA Prevention Research.