As a 15-year-old he was already put at a demonstration board to give chess lessons. The first talent he was coaching was the quite famous Loek van Wely. Later he was training more players who became a grandmaster. Among them Jan Werle, Robin Swinkels, Wouter Spoelman, Twan Burg and more recently Benjamin Bok. In 2016 Attacking Chess for Club Player, came out. More information (in Dutch) on www.sterkspel.nl.