Back pain will affect 80 per cent of your clients at some point in their lives, and it has been estimated at costing UK businesses over ?5 billion annually both in days absent and through litigation. The back is a complex structure and all other parts of the body rely on its smooth functioning. Christopher Norris takes the reader through the anatomy and mechanics of the back, the injuries and disorders the various structures of the back can suffer and then recommends the best practice for rehabilitation.