This handbook provides a quick, organized approach to epidemiology. In each chapter, Understanding Immunology discusses a key principle, with definitions of important terms, examples of fundamental concepts, and related principles. At the end of each chapter, self-test questions and memory aids help students retain what they've learned. Additional references guide them to further reading. Concise discussions explain complex principles and make them easier to understand. Organized in modules to allows self-paced or collaborative learning. The condensed format encourages periodic review. Emphasizes principles for a long life of edition. The modest price makes this reference an excellent value.