Widely regarded as the standard reference in the field this handbook offers a comprehensive analysis of developmental clinical and social aspects of mental health from birth to the preschool years. Leading authorities explore models of development; biological family and sociocultural risk and protective factors; and frequently encountered disorders and disabilities. Evidence-based approaches to assessment and treatment are presented with an emphasis on ways to support strong parent-child relationships. The volume reviews the well-documented benefits of early intervention and prevention and describes applications in mental health primary care childcare and child welfare settings.