Jack Byard is a former mechanic, jewellery craftsman and school technician. He is retired and now lives in Bradford. The popular "Know Your" series includes Know Your Sheep, Know Y...ver maisJack Byard is a former mechanic, jewellery craftsman and school technician. He is retired and now lives in Bradford. The popular "Know Your" series includes Know Your Sheep, Know Your Cattle and most recently Know Your Beesver menos