Part architecture, part history, and part anthropology, this encyclopedic book limns the rich story of housing around the world from the pre-urban dwellings of nomadic, semi-nomadic, and sedentary agricultural societies to the present. Ancient urbandwellings were inward-looking, ranged around a courtyard. Until fairly recently, these dwelling types survived in indigenous urban house forms in the Islamic world, India, China, and the Iberian peninsula and Latin America. After the collapse of the Roman Empire, however, outward-looking house forms replaced the ancient form in most of Europe and the New World. In the Middle Ages houses served both as homes and as places of work, but gradually the domestic and business lives of the inhabitants became separate. In the wake of the Industrial Revolution, profound changes in the residential development of the western world occurred: housing became segregated along socioeconomic lines and dwelling types polarized, with low-density single-family houses at one extreme, and tall, high-density multi-family tenements and apartments at the other. Side effects of America's automobile-intensive suburban dream housing include inefficient land use, pollution, and urban decay. 6,000 Years of Housing chronicles how this came about, and suggests solutions based on a rich variety of historical precedents.