This ERASMUS+ project for the mobility of adult individuals in the field of education and training answers professional needs expressed by the staff of CAVILAM – Alliance française, a French- language teaching centre since 1964, with the aim of improving their language and intercultural skills. Not only teachers and teacher-trainers are concerned, but also the administrative staff who are in direct contact with the public. Initially, 4 departments have been earmarked ( the international relations department, the administrative teaching department, the hospitality and culture department and part of the team of language trainers). 16 mobilities have been requested concerning 4 teaching establishments located in the following countries : Germany, Spain, Italy and the United Kingdom. This will focus on structured modern language courses which are necessary, due to the large number of adult learners who stem from these countries and who attend courses at CAVILAM – Alliance française. In addition to the linguistic aspect, the development of intercultural skills will be part of the aims of this mobility project. It will allow the diversification of skills (know-how and social skills) of the CAVILAM – Alliance française staff and is registered in a professionalization process which our language centre has been committed to since its creation. Promoting team mobility develops motivation and encourages initiatives. Encouraging foreign language knowledge improves how students are welcomed and the comprehension of their expectations. Additionally this project responds to a desire to get to know, from the inside, the whole process linked to an Erasmus+ mobility project, in order to be in a better position to advise, direct and assist with the requests we receive regularly concerning the mobility projects. Undertaken in structures similar to our own, this project could be a conveyor of ideas and innovations and no doubt would encourage cross-border exchanges between adult training centres. By participating in this project, CAVILAM – Alliance française is hereby recognizing the necessity for international development and asserting its commitment as a major player in European mobility.