Written to accompany an exhibition of prints from the John P. Eckblad collection of industrial imagery, At the Heart of Progress explores the way that artists have looked at the world that was created by heavy industry over more than two centuries. An interlocking triad--the mining of coal, the production of iron and steel, and the development of steam power--formed the basis of modern industrial civilization, explains curator Timothy Riggs. This transformation of the world is presented in a wide variety of images: documentary views, advertising and political posters, and works of art...