André Muller Weitzenhoffer (16 January 1921 – 24 February 2004) was one of the most prolific researchers in the field of hypnosis in the latter half of the 20th century, having authored over 100 publications between 1949 and 2004.
In 1957, at the invitation of Ernest R. Hilgard he moved to the Laboratory for Human Development and Department of Psychology at Stanford University.
In 1962, Weitzenhoffer moved to the University of Oklahoma where he carried out research and provided clinical services at the Veterans Administration Medical Center.
As associate editor of the American Journal of Clinical Hypnosis for some years, I worked closely with him in its publication.
He authored one of the most widely read scientific and clinical textbooks on hypnotherapy, The Practice of Hypnotism, a second, revised edition of which came out in 2000.