Over the past 30 years, Johan De Keyser has had the privilege of coaching and training a tremendous number of people, teams and organizations. From alcohol and drug addicts to people with depression or burnout. Both in the social sector and in education. But also in companies and SMEs, from workers to CEOs. He was a ward coordinator in a psychiatric hospital for two years, a Team Development Coach at Lineas, the largest private rail freight operator in Europe, an individual coach and therapist at the therapeutic center Tripsyco and a sociotherapist at day center De Welving of AZ Sint Maarten / Emmaus. In October 2018, his first book "Build your dream team" was published. May 2023 his second book 'Dynamic balance' will be published (both by LannooCampus).