This work is a collection of Carl Wenicke’s lectures on neuropsychiatry translated into English for the first time. Beginning with basic concepts about normal brain function, the book moves to clinical topics, dealing first with chronic mental disorders and 'paranoid states', and then to the more complex area of acute mental disorders. Many of the featured topics are still clinically relevant, and matters of contemporary debate. Carl Wernicke is one of the pioneers of neurology and psychiatry; clinicians, researchers and historians will find this of great interest.