GENERAL

• Peer-reviewer international scientific journals on psychotherapy and mediation
• Member Linkedin groups on Solution Focus, Positive Psychology, ADR/Mediation and Positive CBT
• Advisor Huis voor Helden, www.huisvoorhelden.nl
• Member Advisory Board IACBT (Indian Association for Cognitive Behavior Therapy)
• Member Scientific Committee 4th & 5th International Positive Psychology Congress Istanbul

PSYCHOTHERAPY

• Guest lecturer at several universities around the world
• Co-founder & past Chair Positive Cognitive Behavioural Therapy Section< of the Dutch Association for Behaviour and Cognitive Therapy (VGCt)
• Founder and Chair of the Special Interest Group (SIG) Positive CBT, European Association of Behavioral and Cognitive therapies (EABCT)
• Trainer & supervisor Dutch Association for Behavioural and Cognitive therapies (VGCt)
• Supervisor KP (Clinical psychologists) and GZ (Health psychologists)
• Mental Health Trainer Doctors without Borders Holland (MSF)

POSITIVE PSYCHOLOGY

• Member International Positive Psychology Association (IPPA)
• Member Editoral Board of the Dutch Journal of Positive Psychology
• Member Editorial Board of The Journal of Happiness and Well-Being

ADR/MEDIATION/CONFLICT MANAGEMENT

• International Full Certified ADR Mediator and Conflict Coach
• Founding Member Mediators Beyond Borders (MBB)
• Co-founder & past chair Foundation for Professional Neighbor Mediation, Amsterdam (SPBA)