Wick van der Vaart has master degrees in Dutch literature and social psychology. In 2005, he founded the Instituut voor Interventiekunde (Institute for Interventionism) in Amsterdam. The core of this institute is a two-year program in appreciative interventionism. In 2016, he became Editor-in-Chief of AI Practitioner.
Robbert is an organizational change and development consultant from the Netherlands. He was introduced to Appreciative Inquiry (AI) when participating in the Cigo-programme in 1994. He has (co-)authored several books and articles and provides training and education in AI, leadership and change. He established the Dutch AI Guild as a community of practice for AI practitioners.