John R Hume is Scotland-s foremost expert on industrial heritage. John-s greatest passion was - and is - industry. Over the course of the 1960s, 70s and 80s, he took over 25,000 photographs of late-industrial and post-industrial Scotland. His collection is a remarkable portrait of a way of life that has now all but vanished. His drive to act as a witness to Scotland-s industrial empire, and its steady disintegration, took him to every corner of the country.John-s photography produces an exhaustive and objective record. Yet it also reveals remarkable and poignant glimpses of domestic life - children playing in factory ruins, high-rises emerging on the city skylines, working men and women dwarfed by the incredible scale of an already crumbling industrial infrastructure.In A Life of Industry, author Daniel Gray tells John-s story, and the story of what has been lost - and preserved.