Louis van Kessel has been training supervisors and professional coaches in the Netherlands and across Europe since 1981, with focus on professional and organizational development of human services professions. He was the founding president of ANSE (Association of National Organizations for Supervision and Coaching in Europe) and holds honorary membership in the National Supervisors Organization in Russia. His publications, available in ten languages on ResearchGate, rank among the top 10% most-read works worldwide across all disciplines.