A new English language edition of some of the major works of Emil Kraepelin (1856-1926), the famous German psychiatrist, appeared in 2002. This essay has been written to mark the occasion. Kraepelin is famous for his psychiatric nosology, specifically the demarcation of dementia praecox (schizophrenia) and manic-depressive insanity (bi-polar disorder). This essay deals not only with these topics but with many other aspects of Kraepelin's psychiatry: his talents as a writer and teacher; his unusual and intense concern with volition; his lack of psychological empathy with his patients, on the one hand, and on the other, his humane care for their physical well-being; his tangled involvement with psychoanalysis; his war on alcohol; his tradition-bound treatment of hysteria; his reflective attempt to understand paranoia; some criticisms of his work; the debate over the role played by his famous diagnostic cards (Zählkarten); his misuse of his psychiatric beliefs in the public arena. A conclusion addresses both his shortcomings and his assets.