Bert van Dijk international
Bert van Dijk is an experienced expert on influence and interaction. His book Influencing others, start with yourself is a Dutch bestseller, second best sold book of the Editing Company Thema. It is translated both in English and Chinees.
Bert is founder of the Leary Academy.
In this video a short impression of the trainingprogram he and his team worked out for professional trainers in China.