Swiss artist Roman Signer (born 1938 in Appenzell) has been redefining sculpture for more than 40 years and is now regarded as one of the finest representatives of Process and Conceptual art. He produces elementary dynamic sculptures and installations, also known as time sculptures for their preoccupation with the transformation of materials and objects through time. In his actions, acceleration and change are part of the creative process and he uses photography and moving image to document his work. His work has been presented in numerous museums and galleries worldwide and has been selected for prestigious international exhibitions such as the Venice Biennale, where he represented Switzerland in 1999, Skulptur Projekte Münster (1997) as well as Documenta 8 in Kassel where during “Action in front of the Orangerie” he catapulted 350.000 sheets of paper into the air simultaneously with an explosive charge.