Die DNA der Stadt
The German book Die DNA der Stadt. Ein Atlas urbaner Strukturen in Deutschland —The DNA of the City. An Atlas of Urban Structures in Germany, published by Verlag Hermann Schmidt Mainz— shows figure-ground diagrams, a sort of x-ray of cities. Architects Inga Mueller-Haagen, Jörn Simonsen and Lothar Többen analysed one hundred German cities by standardising their scale and portrayal. The figure-ground diagrams become a readable way to discover the genetic make-up of the cities.