Christian Henriot (Ph.D. 1983), Aix-Marseille University, is Professor of Modern Chinese History. He is the author of many books, including Prostitution and Sexuality in Shanghai. A Social History, 1849-1949 (2001) and Scythe and the City. A Social History of Death in Shanghai (2016). SHI Lu (Ph.D. 1991) Lille University in France, is professor of Chinese studies. Her research focuses on contemporary Chinese society. She is the author of Les voix de migrants-récits de vie des paysans migrants en Chine (2014). Charlotte Aubrun (M.A. degree in cartography & geomatics, 2011), Institute of Asian Studies, Aix-Marseille University, is a GIS specialist and cartographer. She has contributed to multiple data-oriented research projects involving spatial data.