Psychologists are increasingly engaged with and consulted by public agencies, school districts, and businesses to assist in the prevention of major problems (e.g., school violence, drug addiction, and employee stress). This book provides a broad overview of the science and practice of prevention, including practical guidance for developing, implementing, and evaluating prevention programs. The author reviews * the history of prevention * behavior change theories that guide prevention programs * risk and protective factors to target * issues of social justice and prevention and professional issues related to ethics, education, and funding. Model programs from diverse settings are described, including those in education, health care, and community settings. This book offers a multidisciplinary perspective and an array of resources for prevention practitioners, scholars, and students from disciplines such as psychology, social work, education, the health sciences, and public policy.