Covering all the basic and clinical concepts you need to know for your coursework and USMLEs, Immunology, 9th Edition, offers a well-illustrated, carefully structured approach to this complex and fast-changing field. Carefully edited and authored by experts in both teaching and research, it provides cutting-edge, consistent coverage that links the laboratory and clinical practice. A user-friendly, color-coded format, including key concept boxes, explanatory diagrams, and nearly 200 photos to help you visually grasp and retain challenging concepts. Explains the building blocks of the immune system - cells, organs, and major receptor molecules - as well as initiation and actions of the immune response, especially in a clinical context Features a reorganized format that presents immunology in the order in which is typically taught and learned, better integrating basic and clinical immunology Provides Critical Thinking boxes, chapter-opening summaries, and case-based and USMLE-style questions that provide effective review and quick practice for exams - plus more learning opportunities online, including USMLE-style questions and clinical cases