John trained individually with Marshall Rosenberg in Switzerland in the summer of 1999, and became a CNVC Certified Trainer in 2000. He has facilitated trainings in a number of settings, most notably the Waldorf School movement.
John 在加利福尼亚州内华达城为10岁和11岁的孩子开设了一个为期三天的家庭学校课程,他将通过 非暴力沟通 与华德福教育理念。 John 于2020年去世,您可以阅读一篇 纪念他的文章。