National Guild of Hypnotists, Inc. The National Guild of Hypnotists, Inc. is a not-for-profit, educational corporation in the State of New Hampshire. Founded in Boston, Massachusetts in 1951 the Guild is a professional organization comprised of dedicated individuals committed to advancing the field of hypnotism. International Hypnosis Hall of Fame Hypnosis is a special state of consciousness, induced by the skilled application of suggestion, which renders a person more responsive to the techniques of hypnotherapy. American Society of Clinical Hypnosis The American Society of Clinical Hypnosis is the largest U.S. organization for health and mental health care professionals using clinical hypnosis. Stop Smoking Facts Learn more about the different methods and helps to quit the smoking habit. NFNLP NLP certification body founded by WIliam Horton, PsyD.