Librarians and information specialists of French « grandes écoles » have used to meet for 15 years in a specific group of the « Conférence des grandes écoles ». Their new survey about the state of the art in library services shows a contrasted situation. Some big services, with modern facilities, easily give good services to users. Many of the smaller ones try to do their job as weil as they can, in providing documentation services to these specific users, who are future engineers and managers. Who will be able to help people to be aware of the indispensable facilities, necessary to teach these students to use efficiently the professionnal and technical informations today ?