Postpartum Psychiatric IllnessClues which point toward the etiology of postpartum psychiatric illness and its appropriate treatment are spread over four continents and 150 years of history. James Alexander Hamilton and Patricia Neel Harberger decided that it was time to assemble the bits and pieces of information. Postpartum Psychiatric Illness: A Picture Puzzle is an exceptional work that presents a wealth of research and treatment considerations in this neglected field.