About This TextA concise, accessible overview of the U.S. public health system—from origins to current challenges—linking public health science and functions to policy, programs, leadership, and communication. Emphasizes effectiveness, efficiency, and equity, with learning features that reinforce key ideas and skills.What’s New in the Third Edition Extensively revised to reflect the impact of COVID-19 on the public health systems and practices Expanded discussion of organization and financing in today’s challenging environment Integrates the revised 10 Essential Public Health Services and current CEPH competencies Why Students Love This Text Clear coverage of epidemiology, policy, leadership, and community health “Did You Know?” and “Key Ideas” features that simplify complex topics Practical examples across diverse populations and settings Review questions to solidify understanding Why Instructors Love This TextUpdated learning features and instructor materials to support active learning, including a detailed instructor manual with learning activities and case studies, PowerPoints, and a test bank