During their 40-year career Bernd and Hilla Becher created an invaluable photographic encyclopedia of industrial structures. Pursuing the concept of typology, they kept focusing on the same subjects over and over again to reveal constants and variations. Basic Forms presents 61 photographs covering the entire range of Becher motifs--water towers, cooling towers, gas tanks and winding towers, blast furnaces, gravel plants, lime kilns, grain elevators and coal bunkers. Basic Forms serves as a kind of manual to Bernd and Hilla Becher's landmark art and aesthetics. First published in 2004, Basic Forms is now back in print.