Per Isdal, Clinical Psychologist, was one of the founders of «Alternative to Violence» (ATV) in 1987. ATV was one of the first European treatment-centres for men who use violence against their partners. He has been working as a therapist for male perpetrators of violence for more than 30 years. He has written several books on the topic of violence.
His latest book («Contaminated by violence») focuses on the effect this work has on the therapist/helper. This book is also translated into Swedish and Danish. In 2017 he was knighted by the Norwegian king to the order of St.Olav for his 30 years long contribution in the field of family violence.