As a pediatric surgeon, Catherine Musemeche operates on the smallest of human beings, manipulates organs the size of walnuts, and uses sutures as thin as hairs to resolve matters of life or death. Working in the small space of a premature infant’s chest or abdomen allows no margin for error. It is a world rife with emotion and risk. Small takes readers inside this rarefied world of pediatric medicine, where children and newborns undergo surgery to resolve congenital defects or correct the damages caused by accidents and disease. It is an incredibly high-stakes endeavor, nerve-wracking and fascinating. Small: Life and Death on the Front Lines of Pediatric Surgery is a gripping story about a still little-known frontier. In writing about patients and their families, Musemeche recounts the history of the developing field of pediatric surgery—so like adult medicine in many ways, but at the same time utterly different. This is a field guide to the state of the art and science of operating on the smallest human beings, the hurts and maladies that afflict them, and the changing nature of medicine in America today, told by an exceptionally gifted surgeon and writer.