With her extensive knowledge and experience from the world of psychological treatment, Trine has supplied vast amounts of theory and practice to the creation of the book. Besides from her education...ver maisWith her extensive knowledge and experience from the world of psychological treatment, Trine has supplied vast amounts of theory and practice to the creation of the book. Besides from her education as a psychologist, Trine has multiple specializations and has an ongoing thirst for new knowledge and development.ver menos