T cells belong to a group of white blood cells called lymphocytes and play a large role in the immune response. An increased understanding of T cell immunity will provide new insights into the aetiology of human autoimmune disease such as diabetes. This volume reviews the latest developments and discusses the evolution of T cell immunity, thymic requirements, and how to prevent T cell-dependent autoimmunity. It discusses new discoveries, approaches, and ideas in T cell immunity. It features contributions from leading scholars and industry experts. It is a reference guide for researchers involved in molecular biology and related fields.