'Graded Exposure ' was a course developed by Louis to help physiotherapists to integrate theory into practise. Topics include; the biomedical model; evolutionary reasoning; the vulnerable organism model; fear avoidance model; model of disability and the biopsychosocial model. Section 4 is the ' shopping basket approach ' essentially giving therapists a system and method to assess and manage patients well. Louis uses 4 questions, What's wrong? How long? What can I do? and What can you do? These need to be answered with every patient every time. Finally, four sections of Case Histories. Patient stories to help put theory into practise.