Endnotes 1 The term "wicked problem" was first coined by Horst Rittel, design theorist and professor of design methodology at the Ulm School of Design, Germany. Typically, these problems involve a cultural or social problem that is difficult or impossible to solve. Many designers and activist believe that the best way to tackle such issues, not necessarily to solve them, is with a collaborative or interdisciplinary approach. 2 Visual essays normally integrate image and text in a creative way to document, evaluate or reflect on art-based research, learning, activities or events or projects.