For years, Martin Walde has been developing an inimitable, innovative, and successful praxis that includes the exhibition visitor in his dynamic process of creating installations. His works have clearly expanded the concept of sculpture, and his way of working with materials has completely altered our notions of material and space: sculpture can also be regarded as behavior in space. His works are no longer fixed in a gallery, but are instead mobile, multifunctional, and free of context as well as naturally interactive. Thus, on very different levels—aesthetic, material, and intellectual—Walde succeeds in shedding light on various issues associated with the production of art. By making room for coincidence and the viewer’s own will, the artist allows them to playfully participate in his energetic work processes. Exhibition schedule: MARTa Herford,Herford, January 30–April 18, 2010PETER WEIBEL (* 1944, Odessa) is an internationally known media and conceptual artist, curator, and art and media theoretician. Since the 1960s his work has firmly regarded artistic creativity as an open-ended field of activity. He was head of the ZKM, Karlsruhe until 2020. Since 2017 he has been director of the Peter Weibel Research Institute for Digital Culture at the Universität für angewandte Kunst in Vienna.