Radiography goes far beyond X-rays and it has various branches with the two main ones being: diagnostic imaging and radiotherapy. Diagnostic imaging encompasses a wide range of modalities, such as, ultrasound, magnetic resonance imaging, nuclear medicine and, of course X-rays. Radiotherapy also known as radiation treatment is the controlled use of high energy X-rays to treat many different types of cancer. Radiography is constantly changing with technological developments taking place both in diagnostic imaging and treatment modes. The radiographer needs to have a high level of theoretical knowledge and clinical ability. Radiographers require an understanding of the science behind the techniques as well as a great deal of anatomy, physiology, diseases processes and patient care.