Milton H. Erickson, M.D., of Phoenix, Arizona: hypnotist and psychiatrist. His amazing results in treating his patients using hypnosis were studied by Richard Bandler and John Grinder and formed a very important part of the foundation of neurolinguistic programming, or NLP. These observations were summarized in the books "Patterns of the Hypnotic Techniques of Milton H, Erickson, M.D", Volume 1 & 2.