Born in Berne and raised in South Africa, the USA and Switzerland, he was trained in the fields of holistic nutrition, group dynamics (David Kantor), communication psychology (Schulz von Thun, Rosenberg, Weeks, Glasl), conflict resolution (Thommen, Rosenberg, Glasl, etc.), trauma work (J. B. Schmidt) and the participatory design of change (Doppler, Schein, Senge, Scharmer, etc.). Since 1987 in Italy, Austria, Germany, Switzerland and the USA as a trainer and active in participation and public welfare projects. Resident in Thun.