This concise introductory textbook uses carefully chosen examples from clinical and experimental observations to provide an insight into the principles underlying the immune system. As a result, it encourages readers to ask critical questions in order to further advance our understanding of this unique organ. Both authors are experienced lecturers and highly regarded researchers. The book is professionally illustrated in four color throughout with beautiful artwork which by itself distinguish the title from any comparable title. Website: www.wiley-vch.de/home/immunology