Éditorial - Pour un dépôt des archives d’entreprises du bâtiment et des travaux publics dans les institutions publiques de conservation (XVIII^e – XX^e siècle)

After a tribute to Professor Jean-Pierre Sosson, the editorial first calls on building and public works companies to place their archives in public conservation institutions. It then presents the articles in the issue in terms of the themes explored: the founding theme of materials, the promising emerging theme of building repair and maintenance, and the classic and frequently revisited themes of working conditions, site financing, and the organization of trades.