Book excerpt: Designed specifically for modellers of the modern scene, this new book provides a comprehensive reference to all the livieries that have come and gone on the network since the wholesale privatization of the mid 1990s. It is now more than seventy years since the first DMUs made their first appearance on the British railway system and more than fifty years since DMUs were introduced onto the BR network in large numbers. On the privatized railway of the 21st century, virtually all nonelectrified passenger services are now operated by DMUs of one design or another and, on the preserved railways, many examples of the first generation of stock continue to earn their living. Although initially ill-favored, as the years passed, so the humble DMU has attracted an ever-growing army of enthusiast fans.