EN
This article presents two reference documents on the professional development of practising language teachers: Las competencias clave del profesorado de lenguas segundas y extranjeras (Key competences of teachers of second and foreign languages) published by the Instituto Cervantes, and the European Profiling Grid (European EPG Project) for European teachers. This article focuses exclusively on the role of these documents in teachers’ professional development, thus excluding all other ways in which other professionals might use them. As a starting point, a reflection on the meaning of professional development will be presented.