The Western Region has been going through a period of great transition, and this book aims to document these changes, such as the rebranding of First Great Western as Great Western Railway and the replacement of the High Speed Train (HST) fleet with the new Hitachi Intercity Express Train (IET) fleet. There has also been an extensive electrification and modernisation project on the Great Western Main Line between London, Bristol and South Wales, along with numerous rolling stock upgrades and changes. Also included are interesting workings around the region such as railtours and unusual visitors, as well a variety of freight workings and images taken on the heritage railways in the area, many of which have had changes of their own.