Friis & Seller's Epidemiology for Public Health Practice comprehensively covers the major introductory topics, including the heart of epidemiology, from study designs to descriptive epidemiology, and quantitative measures. Aligned to the core competencies in epidemiology for graduate and undergraduate courses, this reader-friendly text is accessible and interesting to students in introductory health disciplines. A unique focus is given to real-world applications of epidemiology and the development of skills that students can apply in subsequent course work and in the field. Building on Friis and Seller's bestselling text, new authors Buka and Goedel bring their expertise in teaching and practice to the Seventh Edition by strengthening the quantitative and methodological aspects of Epidemiology and revising the text to reflect the state of science regarding the design of epidemiological studies. Reorganization and updating of key chapters on causal inference, bias, confounding, and study designs.New chapter offers added details on case designs, with new material on calculation and interpretation of odds ratios.New material and easy-to-follow formulas and calculations for risk ratios, rate ratios, odds ratios, population attributable risk, and more.Increased emphasis on health disparities and current epidemics (e.g., COVID-19, opioid overdose, gun violence, measles) Upper-level undergraduate or graduate introductory Epidemiology courses in departments of Public Health, Nursing, or Health Sciences. © 2026 | 750 pages