'Although there has been much endeavor to improve patient safety and reduce harm, it is clear that there is a view in the field that "more of the same" is not working. This edited collection brings together researchers working at the interface of social science and patient safety. They sit upon the shoulders of a body of seminal social science research that has critically examined iatrogensis in health care, along with the unintended consequences of healthcare practice and health work. Such a body of work has usually used ethnographic methods, and included the patient view and perspective. All key themes in this book. This book is essential reading for scholars and practitioners working in the field of patient safety and I hope that the fresh perspective provided through the lens of the "critical friend" provided by the authors in this book will stimulate new and different approaches to improve safety and the experiences of those who use and provide health care. JaneSandall, NIHR King's Patient Safety and Service Quality Research Centre, King's College London, UK