The content is adapted to the level of the trainee, his nationality for foreign nationals (French courses for this category can be totally or partially delivered in English), if this is the case. For students, upgrading or learning will follow the national education program, but the method will be personalized and adapted. As for the employees of companies, they define the objectives to be achieved and I take a preliminary test to define the starting postulate. The objectives are defined beforehand (school or company) and can be achieved according to the number of hours allocated. The sessions can be practiced face-to-face or remotely.