• Business Administration - masters degree (1988-1994)
• Organisational Psychology - masters level (1991-1994)

• Oneness University India - Oneness Trainer Course (2010)
• Blizz events - workshop Living with intention with Lynne McTaggert (2010)
• The Hague Center for Global governance - Meshworking workshop with Peter Merry (2010)
• ALIA institute & School of Synnervation - ALIA Europe (2010) Solving tough problems with Adam Kahane & LeAnne Grillo 
• CHE School of Synnervation - Conscious Leadership for Sustainability with Barrett Brown (2009-2010)
• CHE School of Synnervation - 16 Ways with Dylan Newcomb & Kyung-Sun Baek (2009)
• ALIA institute - ALIA summer program (2009) Leadership in times of uncertainty with Margaret Wheatley, James Gimian & Jerry Granelly
• The Hague Center for Global governance, Emergence & Innovation - Aveburry experience with Richard Leviton (2009)
• HolacracyOne - Holacracy facilitators training with Brian Robertson & Tom Thomison (2009)
• Center for Human Emergence - EuroConFab with Don Beck (2008)
• Academy for Massage - Holistic massage techniques (2008)
• Oneness University India - 9 Day oneness deepening process (2008)
• Art of Hosting international with Toke Paludan Muller - Belgium (2008)
• Reiki I (2008)
• CHE School of Synnervation - Holacracy experience with Brian Robertson & Tom Thomison (2007)
• CHE School of Synnervation - Introduction to Holacracy with Brian Robertson & Tom Thomison (2007)
• Center for Human Emergence - EuroConFab (2007)
• Oneness University India - 21 Day oneness retreat (2007)
• Center for Human Emergence - Facilitating U processes with Peter Merry (2007)
• International association for organisational and social development (IOD) - PDP alumni meeting - Inclusion and exclusion (2007)
• Center for Human Emergence - NL ConFab with Christopher Cooke (2007)
• International association for organisational and social development (IOD) - PDP alumni meeting - Boundaries and abundance (2006)
• Center for Human Emergence - EuroConFab with Don Beck (2006)
• Barbara Brennan School for Healing - Introduction in healing techniques with Alain Grouette (2006)
• Center for Human Emergence - Spiral Dynamics III with Don Beck & Peter Merry (2005)
• Center for Human Emergence - Spiral Dynamics II with Peter Merry & Gertjan Broekman (2005)
• Center for Human Emergence - Spiral Dynamics I with Peter Merry & Gertjan Broekman (2005)
• International association for organisational and social development (IOD) - PDP alumni meeting - Dealing with opposites in society and organisations (2004)
• Twynstra Gudde - The SPIN contracting method (2004)
• Management Center Europe - 36th International HRM conference, the future of work (2004)
• Root Institute Bodhgaya - Introduction in buddhist psychology and meditation practice (2003)
• International association for organisational and social development (IOD) - PDP alumni meeting - The price of passion (2003)
• Twynstra Gudde - Marketing & Sales (2002)
• International association for organisational and social development (IOD) - PDP alumni meeting - Nature and origin of people and organisations (2002)
• Twynstra Gudde - Professional coaching, coaching professionals (2001)
• International association for organisational and social development (IOD) - Professional Development Programme (2000-2001)
• Twynstra Gudde - Change management I and II (2000)
• 4th International competency management conference; guest speaker with Dr. David Dubois (1999)
• Bureau Zuidema- Insight and Influence (1999)
• Twynstra Gudde - Compensation, renumeration and social benefits (1998)
• 3rd International competency management conference (1998)
• Twynstra Gudde - assessment methods and co-assessment (1997)
• Twynstra Gudde - Program for consultancy and project management skills (1996-1997)
• Royal Dutch Ahold - Managing and mediating conflicts (1994)
• Royal Dutch Ahold - Projectmanagement II (1994)
• Royal Dutch Ahold - Projectmanagement I (1994)
• Royal Dutch Ahold - Presentation skills (1994)
• Radboud University Nijmegen - Hosting and decision making skills (1992)

Wise men talk because they have something to say; fools, because they have to say something. (Plato)