Sanne Kistemaker is co-founder of the service design company Muzus, and teacher at Industrial Design Engineering at the Delft University of Technology. Sanne founded Muzus, a user-centered design agency 10 years ago, together with her sister Neele. Over the years they evolved into a 10 person service design agency that creates products and services by providing insight in the world and motivations of people.  One of the approaches they use is contextmapping. Contextmapping is a method that has been developed at the Technical University of Delft, and allows researchers and designers to map the context around a certain subject. During this interview we talked about the opportunities but also the disadvantages of co-creation, the values of the context mapping technique, service design in education and Sanne provides us with some concrete examples of projects at Muzus.