I too found the book extremely helpful and informative. A therapist I know recommended a companion book by Peter Levine called Healing Trauma (ISBN: 97815917965

I too found the book extremely helpful and informative. A therapist I know recommended a companion book by Peter Levine called Healing Trauma (ISBN: 9781591796589), also available on YT as an audio book. It uses mental imagery as a way of relieving the symptons of trauma without having to relive the actual event(s). Although some of the imagery exercises are sometimes brutal/exhausting it seems the basic under laying theory of the book is using a form of exposure therapy reduces the impacts of flashbacks to the point of ripples in a stream of consciousness rather than the usual roaring tidal wave. YMMV.