British gundogs, terriers, hounds and especially sheepdogs are used and held in high regard throughout the world, wherever working dogs are employed. Wherever sheep are worked by 'strong-eyed' dogs Border Collie blood from Britain is behind it. Inevitably, some old breeds have disappeared and others may follow them. In this book David Hancock describes the working dogs of Britain down the ages, the extinct and the extant. He covers the development of the various modern breeds, highlights the changes which have taken place in their appearance and regrets the loss of working ability in some breeds.