I’m John Halker. I hypnotised my first ‘willing victim’ in 1984, but I first became involved in this profession through smoking cessation in 1994. I started my training in South Africa and later in San Francisco, and I moved my home to Guernsey in 2003.  
I am a registered practitioner with the International Institute of Clinical Hypnosis, a Validated Practitioner with the General Hypnotherapy Standards Council, where I hold a Senior Qualification in Hypnotherapy Practice, and I’m a registered practitioner with the General Hypnotherapy Register.