Guy Baldwin, M.S. (b. 1946) is a Los Angeles-based psychotherapist, author, activist, and educator specializing in issues of particular relevance to the BDSM and leather communities. He maintains that inclusion of non-injurious elements of sadomasochism (bondage, flagellation, domination, submission and others) in a consenting sexuality does not itself indicate or confirm mental illness or psycho-sexual dysfunction. Baldwin has written three books, as well as numerous articles for such magazines as Drummer, Frontiers, Checkmate, International Leatherman, and The Leather Journal.