I started out studying "direct hypnosis" techniques which were used by doctors during the civil war during amputations before the invention of morphine.
Once mastered, I then studied "indirect hypnosis" techniques created by Milton Erickson somewhere around 1940.
I then studied Neuro Linguistic Programming (NLP), Cognitive Behavioral Therapy (CBT) and Conversational Hypnosis techniques.
From there I studied under one of my mentors who taught me how to master the 15 minute session, the late master hypnotist Jeffrey Stevens.
There are also master "street" and "stage" hypnotists from whom I learned what I needed to know in regards to street and stage hypnosis which was on top of that which I already knew in hypnosis, hypnotherapy and medical hypnosis.