This softcover reprint keeps the second, expanded, and improved edition of the popular textbook on immunology accessible. This colorful, easy-to-read textbook introduces the fundamentals of immunology while also addressing current topics such as AIDS, allergies, autoimmunity, and tumor development. The authors succeed in conveying complex concepts in an understandable manner at a highly relevant level. Opinions from experts in Germany, presented in separate boxes, deepen the knowledge on specific topics. The discussion of exceptional subjects, such as the immunology of aging, maternal tolerance towards the unborn child, and the influence of nutrition and psychology on the immune system, makes the book a comprehensive overview of immunology that invites both in-depth study and reference.