British gundogs, terriers, hounds and especially sheepdogs are used and held in high regard wherever working dogs are employed, and Border Collie stock from Britain is to be found wherever sheep are worked by 'strong-eyed' dogs. Inevitably, however, some old breeds have disappeared and, regrettably, many more may follow. In this book David Hancock describes the working dogs of Britain down the ages, the extinct and the extant, uncovering the development of the various modern breeds and highlighting the changes which have taken place in their appearance.