A startling new study in human consciousness, The Myth of Sanity is a landmark book about forgotten trauma, dissociated mental states, and multiple personality in everyday life. In its groundbreaking analysis of childhood trauma and dissociation and their far-reaching implications in adult life, it reveals that moderate dissociation is a normal mental reaction to pain and that even the most extreme dissociative reaction-multiple personality-is more common than we think. Through astonishing stories of people whose lives have been shattered by trauma and then remade, The Myth of Sanity shows us how to recognize these altered mental states in friends and family, even in ourselves.