Renowned trauma researcher Bessel van der Kolk's book is comprehensive in scope. The author explains in clear terms the physical causes and manifestations of post-traumatic stress disorder (PTSD), how vast the population of sufferers is, and the devastating repercussions to society in general as a result of inadequate treatment. Anecdotes of patients from all walks of life are used to illustrate how trauma rewires the brain to create dissociated memories.