Mario Merz was a central figure in the Arte Povera movement that emerged in Italy in the late 1960s. Formally related to Postminimalism in the United States and Mono-ha (School of Things) in Japan, Arte Povera challenged the traditional values placed on art objects by dissolving sculpture into performance. To this end, Merz pursued installations that are at once autonomous and open-ended, using the Fibonacci sequence as a symbol and structure, and employing widely varying materials like fruits, twigs, wax, tar, wire, and neon tubes, which at times spell out political aphorisms and at other times graft onto the architecture that hosts them.

Produced by Sperone Westwater Gallery in 1995, this is a rare, out-of-print catalog of Merz's work from 1967 to 1982.