I had the opportunity to work with Guillaume on two occasions: the first time as he was Team leader of a consultancy in which I was the technical expert and the second time as I took his online class on time management. Both times were very positive experiences! I appreciated his excellent facilitation skills, and the constructive way he leads the teams. I believe his own experience as a Project Manager is a real added value when he delivers the time management course. What I specifically liked was the wide array of tools to test between sessions to identify the most suitable ones. I am fully recommending this class!