Jean Jacques Émile Cheysson was a French ingenieur, designer of roads and bridges, and social reformer, who made a career as in industry and in the French administration. He has played an important role in the institutionalization of statistics in France, and has published a series of graphic statistical albums for the French Ministry of Public Works, which are considered as extraordinary examples of data visualization. At the same time, he was a disciple of Frédéric Le Play and resumed sociological work and his monographic method.
