Belgian clinical Psychologist, Person Centered / Experiential Psychotherapist, now living and working in Germany. Supervisor of the Flemish Association for PC /Experiential Psychotherapy and Counselling. Member of the editorial board of the World Organization for PC / Experiential Psychotherapy.

Dion worked for over 30 years in residential psychiatry with people suffering psychotic functioning, where he and his team translated Prouty’s Pre-Therapy into a multidisciplinary therapeutic ward milieu. Now working in an occupational rehabilitation service for people with multiple problems.

Certified Trainer and Coordinator of the Pre-Therapy International Network. Publishes on Pre-Therapy (see: www.pre-therapy.com under “references”), supervises practitioners and teams, and gives lectures and workshops in 4 languages.