An updated eBook version of this text will be available on October 1 and will offer 6 cases studies on COVID19 and new interactive digital exercises that teach the principles of population health.An updated eBook version of this text will be available on October 1 and will offer 6 cases studies on COVID19 and new interactive digital exercises that teach the principles of population health. Public Health 101 Third Edition provides a bigpicture population perspective on the determinants of health and disease and the tools available to protect and promote health. Now with a greater emphasis on community involvement and providing community basedservices the third edition examines the full range of options for intervention including use of the healthcare system the public health system and societywide systems such as laws and taxation. Through a unique set of case studies vignettes and extens