Robert Morris was instrumental in the development of Process art, a movement that considered progressive, durational action as artistic form. Untitled, 1967, in Glenstone’s collection, is composed of nineteen pieces of industrial felt cut into geometric shapes by a third party (not the artist), which are then hung, laid, drooped, or otherwise placed upon a set of six hooks installed directly on the gallery wall at specific intervals. Morris surrendered full artistic control over the execution of this work. Instead, the material, process, and gravity collectively determine the finished form of the sculpture, and the shape of the piece shifts with each installation. The installation can even be considered a performance, and, by extension, the process of achieving each installation an artwork in itself.

–From the Glenstone Field Guide