Immunology is one of the most fascinating scientific disciplines. Researches in Immunology have made almost incredible strides in the past few decades. The quantity and complexity of information is steadily increasing, and students and already overburdened with material to remember. Effects have been made to avoid over-burdening the students with information. Many of the omissions are intentional to make the text selective. The aim is to enthuse the reader with this active and exciting area of research and to lay a solid foundation on which further study of its various facets may be based. The book is organized in twenty one chapters and many of them are chiefly emphasized. These include: Cells of The Immune System, Immunogens and Antigens, Infections and Immunity, Inflammation, Cell Mediated Immunity, Vaccination, Hypersensitivity, Cell Injury, Wound Infection and Death, Immunological Techniques, and Immunity to Cancer.