Stéphane Tonnelat is a research fellow at the CRH-LAVUE laboratory of the CNRS (Centre National de la Recherche Scientifique). He conducts ethnographic research on various types of urban public spaces in Paris and New York. His main fields of investigation lie in urban interstices (wastelands, empty lots), parks and gardens, subways and ferries. He is currently working on two book projects: one with William Kornblum on interactions in the New York subway, especially at two stations in Queens on the #7 line; and one with Michèle Jolé on the uses of parks and public gardens in Paris. He is also joint-chief editor of the online journal Metropolitiques.