Carl Andre (born in 1935 in Quincy, Massachusetts; now living and working in New York) is regarded as one of the fathers of minimal art. With his first exhibitions starting in the middle of the 1960s, he revolutionized the notion of sculpture as well as the conventions in respect to its perception, initially in his native country and then – beginning with a legendary exhibition in Düsseldorf at the Konrad Fischer Gallery in the autumn of 1967 – with an almost greater response in Europe. If sculpture had been thought of in terms of form and structure up to that time, Andre redefined it through the material and the location. He decided to take the working materials at face value. ‘I want wood as wood, steel as steel, aluminum as aluminum, a bale of hay as a bale of hay’. Instead of cutting into the material as sculptors are supposed to do, he cuts into the existing space with the materials and transforms it. His work breaks with all conceptions which imagine sculpture as being something which the observer approaches as something existing in the same space and yet an entity entirely unto itself.