PENCK, A.R. The Secret Book of Jazz. Comprised of 9 steel blocks. Loose in the original metal container, fastened with screws. Cologne and New York: 1987.

One of the more interesting "object books." Penck's homage to Jazz consists of nine plates, each engraved with the name of a celebrated Jazz musician and a symbol of his or her music: Jeane Lee's voice, Frank Wright's sax, Billi Bang's bass, and Dennis King Charles's drums are all represented here in original designs by Penck, a leading figure of the Fluxus movement. One of 30 copies, signed by Penck.