Three-dimensional or sculptural work that is the counterpart of collage, which is two-dimensional. Assemblage is composed of non-art materials, often found objects, that are seemingly unrelated but when 'assembled', create a unity. It originated with the Cubism of Pablo Picasso and George Braque, who, in 1913, made the first Assemblage, which was a guitar made of sheet metal. Peter Selz and William Seitz, curators at the Museum of Modern Art, created the name "assemblage" in 1961 for an exhibition of objects they titled "The Art of Assemblage". American Assemblage artists include Robert Rauschenberg, Jasper Johns, Frank Stella, Louise Nevelson, Joseph Cornell, Edward Kienholz, Lee Bontecou, Escobar Marisol, Richard Stankiewicz, Laszlo Moholy-Nagy, Pierre Arman and Red Grooms. Sources: Ralph Mayer, "A Dictionary of Art Terms and Techniques"; Robert Atkins, "Art Speak"; AskART database. <br><br> A type of modern sculpture consisting of combining multiple objects or forms, often 'found' objects. (A found object is one that the artist comes upon and uses, as is or modified, in an artwork.) The most well known assemblages are those made by Robert Rauschenberg in the 1950's and '60's; for example, one assemblage consisted of a stuffed goat with an automobile tire encircling its stomach, mounted on a painted base. The objects are combined for their visual (sculptural) properties, as well as for their expressive properties.