There are several types of hypnosis, Ericksonian Dissociative Hypnosis (named after its creator Milton Erickson), which evolved into classical hypnosis, and Humanist Hypnosis. Both forms of hypnosis are therapeutic. To put it simply, the former uses hypnotic suggestions, while the latter is less directive. Some therapists are trained in both techniques, which are equally effective.
As far as I am concerned, I am a Master Practitioner in Humanist Hypnosis and NLP (Neuro-Linguistic Programming), which I combine with Art Therapy. Indeed, each of us has 3 learning channels: