"Jan gave a keynote during an event for our start-up association. The overwhelming feedback was that it was the best part of the event. Using drawings to discuss business challenges is such a refreshing way. Jan does this in a seemingly lighthearted, humorous way, without a moralizing stance - yet it keeps you thinking about particular images and topics for long afterwards. His reflections are both applicable to start-up and corporate settings. If you want a fresh perspective -and format- on business and leadership topics, question some "established business truths", take a step back and reflect - then Jan is the right guy! His book is also highly recommendable.”