The mission of the IST-Lux is to provide theoretical and practical training in schema therapy for mental health professionals within the multilingual environment of Luxembourg and the greater region and to promote schema therapy as an effective therapy model for the treatment of a variety of mental health problems, notably personality disorders and long term disruptive life patterns. The Institute is certified by the International Society for Schema Therapy (ISST) to offer training programs that fulfill the ISST Guidelines. The faculty of the IST-Lux consists of a team of qualified and experienced trainers/supervisors (see below), who are certified by the ISST at the advanced level and have fulfilled criteria for certification as trainer/supervisor.