Book excerpt: A case manager shares stories of patients’ and families’ journeys and “deftly conveys the frustrations and inequities of traumatic brain injury” (Mary Roach, The New York Times Book Review). Head Cases takes us into the dark side of the brain in an astonishing sequence of stories, at once true and strange, about the effects of brain damage. Michael Paul Mason is one of an elite group of experts who coordinate care in the complicated aftermath of tragic injuries that can last a lifetime. On the road with Mason, we encounter survivors of brain injuries as they struggle to map and make sense of the new worlds they inhabit. Underlying each of these survivors’ stories is an exploration of the brain and its mysteries. When injured—by a bad fall, a viral infection, or some other misfortune—the brain must figure out how to heal itself, reorganizing its physiology in order to do the job. Mason gives us a series of vivid glimpses into brain science, the last frontier of medicine, and we come away in awe of the miracles of the brain’s workings and astonished at the fragility of the brain and the sense of self, life, and order that resides there. Head Cases “[achieves] through sympathy and curiosity insight like that which pulses through genuine literature” (The New York Sun); it is at once illuminating and deeply affecting. “Vivid, heartbreaking [and] movingly written.” —The Seattle Times “Tells stories of tremendous courage and perseverance as survivors and their families work to re-establish the everyday skills they had before their injury. The strange effects of neurological damage will draw fans of Oliver Sacks, but Mason’s poignant and caring accounts of his clients’ lives are sure to touch the hearts of a wide range of readers.” —Publishers Weekly (starred review)