Here is a photographic journey along the 215 miles of the River Thames from its source in Gloucestershire to the mouth, first travelling along the north bank and then back along the south bank. The journey takes the reader through Gloucestershire, Oxfordshire, Berkshire, London and out into the Thames Estuary where the river meets the North Sea. Photographer Stephan Kaluza and his assistants made their journey partly on foot and partly by boat and took pictures of both banks every few seconds, culminating in about 30,000 images. A selection was then digitally combined to form the long consecutive sequences of the astonishingly changing and varied river banks, whether the green fields of the Cotswolds, the university spires of Oxford, the boathouses of Henley on Thames, or the built-up areas of London, from Battersea Power Station and the Palace ofWestminster to Tower Bridge and CanaryWharf, or the industrial areas towards the mouth.