Thomas Hirschhorn is a Swiss artist. In the 1980s he worked in Paris as a graphic artist. He was part of the group of Communist graphic designers called Grapus. These artists were concerned with politics and culture, displaying impromptu creations and posters on the street mostly using the language of advertisement. He left Grapus to create the hypersaturated installations he is known for today, using common materials such as cardboard, foil, duct tape, and plastic wrap. These installations are often site specific and outside the gallery, and/or interactive. Unlike much total installation work, the viewer is an observer not an actor in the spaces he creates because of the way he continues to offer messages in his work as he did with Grapus.