Lisa Lévy holds a PhD in Geography from the University of Grenoble. Research and teaching fellow at the University of Geneva (Institute of Environmental Sciences), her research focuses on the analysis of territorial planning policies and the epistemology of planning. She develops her theories on improvisation in spatial planning by analyzing the trajectories of projects, the skills of actors and the organizational arrangements. Having worked for four years in a French local authority (thanks to a CIFRE thesis scholarship), she is also interested in the evolution of the profession of urbanist.