This book can be used as a helpful tool for parents and therapists working with kids (and adults) struggling with boundaries. It is short enough to get through quickly but still has depth and easy access to details. NPD, OCD or dementia may use this delicately and creatively as an ice breaker for approaching challenging conversation. I have used it with an adult to help open the topic of parent boundary crossings and compulsive behaviors in trauma and early Alzheimer's.