Global South cities are magnets of immigration flows. They are vivid crucibles of human diversity, cultural interactions, but also of political tensions and social violence. From Kolkata to Bogota, from Harare to Fort-de-France, from Bamako to Cape Town, this book offers a unique set of studies on cities where multifarious diaspora flows converge. Building on the concept of the ecotone, i.e. a contact zone between populations of different backgrounds, it elicits a multidisciplinary dialogue between social science and humanities scholars, exploring the articulation between the postcolonial and the neoliberal city. Following Ananya Roy’s proposition of a worlding the South (Roy 2014), this book contributes to forging a situated world view rooted in the experience and the imaginary of Southern cities.