Kristoffer J. Whittaker, PhD, is a clinical psychologist practicing in the Norwegian Family Counselling Offices, a senior researcher at Modum Bad Psychiatric Center and Research Institute, and a lecturer in the Department of Psychology at the University of Oslo, Norway.Lennart Lorås, D.Sys.Psych, MA, is a professor at Western Norway University of Applied Sciences and professor II at VID Specialized University, Norway. He is an internationally recognized leader in the field of Integrative Systemic Therapy, with many years of research and clinical experience in child and adolescent mental health.