Dennis van Ravenswaaij studied Applied Physics at the Delft University of Technology. After working as a project manager in IT Consulting for several years, he joined Krauthammer Consulting, and a few years later The Brown Paper Company, to work exclusively on change implementation and sales improvement projects. In 2011, he became a partner at The Brown Paper Company. He is an experienced specialist in sustainable and measurable performance improvements, with a strong focus on cultural development and personal development of both management and sales executives. He has had a large contribution in developing the Brown Paper change method. He is responsible for the further development of this method, SalesART and The Brown Paper Company employees who are working with this method.