David R. Hawkins, M.D., Ph.D., has practiced psychiatry since 1952, and is a life member of the American Psychiatric Association. A widely respected therapist and lecturer, his national television appearances include The MacNeil/Lehrer News Hour, The Barbara Walters Show, and the Today show. He has published numerous scientific papers and videotapes, and co-authored the book Orthomolecular Psychiatry with Nobelist Linus Pauling. His diverse background as a researcher and teacher is noted in his biographical listing in Who’s Who in America. Dr. Hawkins currently divides his time between his practice, books in progress, and direction of The Institute for Advanced Theoretical Research in rural Arizona.