Expert and enthusiast in the field John Scott-Morgan brings readers an informative and beautifully illustrated look into one of the three classes of main-line diesel-hydraulic introduced for service on the Western Region-the Hymeks. The Hymeks were built between 1961 and 1964 and constructed by Beyer-Peacock of Manchester. The locomotives saw use widely over WR metals (although based at Bristol Bath Road depot), on both passenger and freight services. However, with the rationalization of the railway industry post-Beeching and with the policy of withdrawing diesel-hydraulic locomotives, the class was scheduled for early withdrawal, being taken out of service between 1971 and 1975. A number survive in preservation. This impressive new title is an all-color album featuring the class, and like the other volumes in the all-color series, includes sections of descriptive text and up to one hundred superb illustrations. A must have for any rail enthusiast!.