Introduction to Public Health, Fourth Edition offers a thorough, accessible overview of the expanding field of public health for students new to its concepts and actors. Written in engaging, nontechnical language, this best-selling text explains in clear terms the multi-disciplinary strategies and methods used for measuring, assessing, and promoting public health. Packed with illustrative real-world examples, this updated edition provides students with informative discussions of the current technical issues and practical obstacles facing public health practitioners and policymakers alike. Through coverage of new approaches to research and data collection, current best practices in the field, and the social and ethical challenges of devising public policy, Introduction to Public Health, Fourth Edition provides readers with a broad-reaching, practical framework for understanding the multifaceted forces and organizations of today's public health enterprise.