This brief text is a powertul revision guide to the core concepts of immunology, and a concise dictionary of immunological terms. It offers a uniquely rapid source of information about a complex and fast-moving field. Organised into five sections corresponding to the principal topics of immunology (The Immune System, Antigen Recognition, Immune Responses, Immunopathology, and Immunological Techniques). Within each section, lists of core terms and concepts are followed by short, straightforward definitions. Color illustrations support the text. An Index of Terms allows the reader to locate quickly the definition being sought. Ideal for rapid revision and for students with limited prior knowledge of immunology.