In recent years, European cities have increasingly become objects of social research. On the one hand, the effects of economic crises have been particularly intense in urban and metropolitan contexts. On the other hand, local governments have had to cope with fewer resources while faced with greater social needs. Cities have therefore become a terrain of both heightened social and political tensions and of social and institutional innovation. LPS has been paying great attention to urban issues, either in the context of a large research programme on European cities (see the 2017 Routledge volume Unequal cities: the challenge of post-industrial transition in times of austerity, edited by R. Cucca and C. Ranci), and of other European projects focusing on social innovation (WILCO) and on territorial cohesion (COHSMO).