Immunology offers the most contemporary perspective on the science available, providing a clear, easy-to-follow introduction to the discipline suitable for undergraduate students. In a course where students often get lost in vast amounts of detail and the sheer complexity of the immune response, Immunology helps students see the big picture with an approachable narrative that presents the exquisite details of immunology while emphasizing the connections between key themes that students so often lose sight of when learning the material. Immunology features an exceptional illustration program and includes simple, clear explanations, abundant examples, and features that unravel the mysteries of immunology through accounts of classical discoveries and recent, cutting-edge research. Since many students in the course are preparing to enter careers in research, medicine, and other health professions, an appropriate amount of applied knowledge and clinical content is included in the narrative, features, and engaging case studies. Students will easily be able to make connections, moving beyond memorizing just what we know to truly understanding how we know what we know-and why.