What is "mono-ha"

Mono-ha is the name given to group of 20th-century Japanese artists. The Mono-ha artists explored the encounter between natural and industrial materials, such as stone, steel plates, glass, light bulbs, cotton, sponge, paper, wood, wire, rope, leather, oil, and water, arranging them in mostly unaltered, ephemeral states. The works focus as much on the interdependency of these various elements and the surrounding space as on the materials themselves.