Imi Knoebel

Imi Knoebel (/i:mi: kno:ʊbəl/) (born Klaus Wolf Knoebel; 1940) is a German artist. Knoebel is known for his minimalist, abstract painting and sculpture. The "Messerschnitt" or "knife cuts," is a recurring technique he employs, along with his regular use of the primary colors, red, yellow and blue. Knoebel lives and works in Düsseldorf. Provided by Wikipedia