Anatomy of a City is the result of a patient survey conducted in Saint-Étienne. For a whole year Guillaume Bonnel walked the city and made many pictures, examining meticulously the ways urban space evolves, from massive development schemes to the most precarious improvements made to buildings by the inhabitants themselves. Around him a team of researchers in the humanities and social sciences began to scrutinise the collected views regularly and to handle them, continuing within the gradually constituted archive an exploration of the forms of the city begun by the photographer. The volume is the report of that collective investigation, in his footsteps, and a tribute to the city and its urbanism.