This deliverable presents six case studies developed based on the learnings and outputsof the REFLOW project. The case studies take departure from the pilot cities in REFLOW. The purpose of this deliverable is present the methods behind the case study development, describe the diversity of topics associated with circular economy tackled in each case study and to present the content of the case studies that have been developed. The deliverable itself presents important processes and learnings for future actors to develop their own case studies within the field of circular economy and the casestudies present vital learning tools for students in higher education to apply theories to the practical application of circular economy in cities across a variety of topics and disciplines.