This text provides a case for evidence-based public health, and practical guidance on how to choose, implement, and evaluate evidence- based programs and policies in public health settings. The book targets students in public health and preventive medicine, and public health professionals without extensive formal training in public health sciences. Topics include assessing scientific evidence for public health action, quantifying the issue, and developing an action plan and implementing interventions. The authors are professors at Saint Louis University School of Public Health.