As a member of the important avant-garde performance group Hi Red Center in the early 1960s, Jiro Takamatsu (1936–1998) became known for humorous interventionist actions. After Hi Red Center disbanded in 1965, Takamatsu continued to work on expanding the field of production and perception—painting shadows, for example, on the white surface of a canvas, tracing a walk in the city with a piece of string, or making sculpture with such everyday materials as bottles, strings, bricks, nets, and logs. Although Takamatsu’s experiments can be seen in parallel with those of Supports/Surfaces and Arte