This popular book applies the author's many years of clinical and teaching experience to make the principles and methods of epidemiology easy to understand and enjoyable to read about. A clear, concise writing style and just the right dose of humor explain the role of epidemiology in measuring disease in a community, estimating risks, and influencing public policy and ethical concerns. Line diagrams, cartoons, and review questions with answers reinforce the text. With Student Consult Online.