LOST LABOR: Images of Vanished American Workers 1900-1980 is a selection of 155 photographs excerpted from a collection of more than 1100 company histories, pamphlets, and technical brochures documenting America's business and corporate industrial history This collection has been assembled over the last 20 years and many of the titles are rare and difficult to find. Since the images document factories, machinery, and jobs that no longer exist, LOST LABOR provides an unusual visual and historical record of work in 20th century America. The term "lost labor" can derive from the effects of mechanization, computer automation, technological advances, or through the consequences of corporate takeovers, downsizing and globalization. In many cases, these meanings can and do overlap.