Zurich, Switzerland: Edition Howeg, 1971
26 pp., 30 x 21 x 2 cm., boxed
Edition of 400 signed and numbered copies
An artist book consisting of 26 loose leaves, housed in a transparent plastic box. The title translates to "Concreting" and an additional 100 copies of this book was cast in concrete by the artist, as Betonbuch ("Concrete Book"). The special edition came with a metal plate incised with the artist's signature and edition number.