This is a lovely, highly accessible and informative book for therapists who use the Internal Family Systems model of treatment. Those of us who have worked for many decades in the field of complex trauma and dissociation have become accustomed to the idea of needing psychotherapy approaches “plus” specialized understanding and knowledge about treating dissociation. Joanne Twombly has masterfully combined IFS and the basic tenets of treating clients with dissociative disorders, emphasizing that ego state “parts” and dissociative “parts” require somewhat different, if complementary, approaches. She offers pragmatic modifications of IFS to fit for more dissociative clients. IFS therapists will find a wealth of practical information illustrated by a variety of case examples. A must read!