Armelle Choplin is Professor of Geography and Urban Planning at the University of Geneva. Her research explores how cities are produced and experienced in the Global South, especially in Africa. She is currently conducting research on the construction boom and the political economy of concrete in Africa. She has recently published Matière Grise de l’urbain, la vie du ciment en Afrique (MétisPresses, 2020) and Concrete City: Material Flows and Urbanization in West Africa (Wiley, 2023).