Agaath (J.A.) Koudstaal works in Curium-LUMC as programme leader, cognitive behaviour therapist/ DBT therapist and DBT skills trainer. As programme leader of a care programme for young people with personality problems she has set up an ambulant, part-time and clinical programme with DBT as basis. Together with her colleague she wrote the book ‘Surfen op Emoties’ [Surfing on Emotions] about DBT for young people and developed together with her colleagues a online DBT skills training for young people, also with the name ‘Surfen op Emoties’. Besides that, Agaath is a clinical psychologist and psychotherapist.