David J. Morris’ book “The Evil Hours: A Biography of Post-Traumatic Stress Disorder” offers a complete examination of how PTSD affects daily life in America. Morris, a former Marine and combat writer who experiences PTSD, provides a crucial explanation of the disorder. Morris’s biography, a scientific, literary, and cultural history of the condition, and interviews with PTSD survivors are all combined in one book. It gives those with PTSD and those close to them a profound understanding of the disorder, as well as those trying to make sense of a frightening and uncertain period in their lives.