When the Bibliothèque Nationale moves into the new Bibliothèque de France, leaving behind only six specialised departments, the opportunity will arise to use the buildings of the Rue de Richelieu site to bring together a group of art history libraries and research centres. Priority will be given to the remaining Departments of the Bibliothèque Nationale, which need more space than they presently occupy; they will be joined by the inter-university library of art and archaeology from the Rue Michelet, the central library of the national museums, from the Louvre, and the older collections of the Ecole Nationale Supérieure des Beaux-Arts. The architectural holdings of the latter might be identified as the foundation for a major architectural collection to satisfy the demand for such a library in Paris. The collections thus brought together will not be merged, but will be exploited by means of shared services, including a union catalogue, and will be developed by means of a common acquisitions policy This concentration of resources on one site will not in itself constitute a ‘national art library’, but will provide a central node for a wider network. (An English version follows the original French text).