Spain, 2007). In Potrč's view, the sustainable solutions that are implemented and disseminated by communities serve to empower these communities and help create a democracy built from below. Since 2011, Marjetica Potrč has been a professor at the University of Fine Arts/HFBK in Hamburg, Germany, where she teaches the course Design for the Living World. She and her students have carried out participatory design projects in various parts of Europe (Germany, Austria, Norway, Sweden, and Serbia), as well as in the United States and South Africa. The Soweto Project (2014) is of particular note. She and her class spent two months in the Soweto district in Johannesburg, where, among other things, they worked with the residents of the Orlando East neighborhood to turn a degraded public space, which was being used as a dumping ground, into a community park. Since 2010, Potrč has also made a number of projects with the architectural and design practice Ooze (Eva Pfannes and Sylvain Hartenberg), based in Rotterdam. These projects, which focus largely on water purification, include Between the Waters: The Emscher Community Garden in Essen, Germany (2010), where they constructed a complete sustainable water supply system on an island in the Emscher River, and Of Soil and Water: King's Cross Pond Club, in London (2015), where they created a natural swimming pond with its own micro-ecological environment on a construction site. Potrč's large gallery installations, which she calls "architectural case studies," are a unique practice and have long been a central part of her work; they aim to translate into the gallery space her view of contemporary architectural practices and their relationship to issues of energy, water use, and communication. For example, soon after the Dry Toilet project, she created Hybrid House: Caracas, West Bank, West Palm Beach at the Palm Beach Institute of Contemporary Art in Lake Worth, Florida, in 2003 (the following year, the installation traveled to the List Visual Arts Center of the Massachusetts Institute of Technology, Cambridge, Massachusetts). The installation represents a case study of three contemporary communities in conflict—the Caracas barrio, the West Bank, and West Palm Beach, Florida—and illustrates how they negotiate issues of space, security, energy, water, and communications, bringing to the fore the uneasy coexistence of different communities in 21st-century societies. In one of her most controversial and most often quoted statements, Potrč has observed: "There are two urban forms in the global city that