Federico Sarink is a Dutch psychologist and family therapist. He's specialized in humor interventions in psychotherapy, and as such in the Provocative Therapy. In his private practice in Leiden, The Netherlands, he is helping individual clients, couples and families. He teaches at the Vrije Universiteit of Amsterdam and he is investigating the role of humor in psychotherapy as a PhD student at the University of Almería, Spain. Federico is author of the first book in Spanish about the Provocative Therapy. His book has been translated in Dutch and English as well.