With an average evaluation score of 9.2, we can clearly assume that we have met the expectations of the participants. In the words of one of the participants, Vincent Gong: We spend 4 days in Amsterdam and 1 day in Rotterdam, where we have lectures and cycling practice in both two cities. The lectures given by multiple experts covering various interesting topics, such as, theory, modelling, data, safety, environment and policy. We also presented our own research topics and revised the presentation after 5 days lectures. As a participant of this summer school, I not only obtained wonderful knowledge about cycling in cities, I also extended my network in this research field. It is a fantastic experience during my PhD.