Public Health is one of the fastest growing university programs in the United States today. At the same time, the challenges that face the practitioner continue to grow and become more complex. This Encyclopedia of Primary Prevention and Health Promotion, 2nd ed covers more than 250 topics, taking a lifespan approach to the fields of public health and prevention. The encyclopedia is divided into four volumes: 1. Foundational Topics 2. Early Childhood and Childhood 3. Adolescence 4. Adulthood and Older Adulthood Within each volume, issues of illness prevention and health promotion (sometimes referred to as "positive psychology") are addressed in chapter-length entries arranged alphabetically. An international group of contributors synthesizes research focusing on improving the physical and mental health of the community as a whole. Each entry will have a structured format: Introduction, Definition of Terms, Prevalence, Theories, Empirical Studies, and Strategies (What Works, What Is Promising, What Doesn't Work). Each entry concludes with a look ahead to the coming decades of Public Health - what are the next steps to primary prevention and health promotion - and a "See Also" box recommending books, films, or articles by the editors for further reading. The encyclopedia is designed for practitioners, students, and researchers working in prevention, public health, and psychology. It will also serve as reference for practitioners in sociology, social work, nursing and medicine. The second edition more than doubles the number of entries in the first edition by adding entries focusing on gender, African American and Latino issues, social support, social and emotional learning, and physical health and disease. All entries from the first edition will be rewritten and expanded, reflecting the most up to date thinking in the field.