New York: Wittenborn and Co. (1970). First Edition. Quarto. The American edition, issued simultaneously with the German, and the first book by Hilla and Bernhard Becher. This copy SIGNED by both artists. The manifesto of the Dusseldorf school: a group of Becher students, loosely affiliated, comprising some of the big names of today's art world, including Andreas Gursky and Thomas Struth. Like Ruscha, the Bechers blur the line between documentation and art, creating an almost scientific polemic that transcends any preexisting medium. (Parr / Badger, v2, 261; Roth 194-195; Open Book 258-259; Auer 518). Fine in a near fine jacket with a short closed edge tear and a few small nicks. Copies signed by both Bechers are scarce.