I don't know how it should be translated. There's several versions, none of which seem to perfectly fit: Community College, Adult Education Centre etc. Anyhow, in most towns here they organize spare time courses around various subjects from languages to dancing to woodworking. The skill level of the teachers can vary from advanced hobbyists or native speakers to trained professionals. We're lucky as our tutor is a trained and qualified Master Luthier who has been in the business since 1984. For many of us the course is some sort of counterbalancing therapy after a week at work. So no, it's not an 'official' luthiery school, we don't get diplomas nor do we qualify as luthiers.