Quentin Letesson is an urban planner and senior researcher at the Free University of Brussels (ULB, Belgium) within the Brussels Studies Institute’s Center Observatory (BSI - BCO). He is particularly interested in urban materiality, the walkability of public spaces as well as the impact of the spatial configuration and topological properties of the street network on urban movements. He also has a PhD in archaeology and is a member of the Aegean Interdisciplinary Studies (Aegis) Research Group as well as a guest lecturer at the Catholic University of Louvain (UCLouvain, Belgium).