I welcome this book on behalf of radiographic practitioners every where. It arrives at a time of rapid change within the world of medical imaging where advancing technology and changes in employment conditions are having a major effect on the everyday working practices of those who physically and clinically direct radiation. The development of radiography as a graduate profession within the United Kingdom provides the opportunity for role extension and role fulfilment for radiographers. Moves toward standardized quality assurance and quality control programmes in radiography and radi ology include not only the audit of equipment but also working practices. The science and art of image production form the corner stone for these working practices where radiographic skills and image quality lead to the provision of a caring, quality service. This book will help the development and continuation of this programme by affording detailed information on a wide range of imaging procedures for radiographers, including positioning and procedural protocols, as well as image acceptance criteria. A major feature of this book is the systematic chronological presentation of its content which makes it a boon to both the new and experienced practitioner as well as those studying for a radiography degree or involved in the first year of the FRCR examination. Elizabeth Unett and Amanda Royle are experienced radiographers and educationists in imaging sciences. They have both played a major role in the development of clinical education programmes for diploma and undergraduate radiography students.