Gleaned from texts written from the 1970s onwards, this volume collects practical information on the construction of roofs and shelters that were intended to meet the material needs of impoverished peoples in the Global South. It is representative of architect Yona Friedman’s foresight in those years, as he had already decided to focus his interventions on how to include the inhabitants in the design of their habitat and dwellings. Besides being tested for UNESCO, Friedman’s manuals include essential “blackboard” sketches. Ultimately, ‘Roofs’ highlights the fact that the various issues facing modern cities are the result of irresponsible attitudes towards our planet.