The Bechers began photographing old industrial sites in the 1950s, and have described their subjects as 'buildings where anonymity is accepted to be the style.' They usually take two views, one from the front and the other from the side, to provide a clear and objective documentation of each structure. The images are then grouped into various categories and arranged in a grid to highlight similarities and differences. These photographs of pitheads were all taken at collieries in Britain, between 1965 and 1973.