Paintings made of glass, animated by light and thus ever-changing in their colour: Hans Gottfried von Stockhausen's life-work is unique in the 20th century. In his time teaching at the Staatliche Akademie der Bildenden K nste in Stuttgart (1970 -1985) Stockhausen placed his panels as autonomous pieces of art at the heart of his oeuvre; they soon gained international recognition as "Stuttgart Glass." For the artist, they stood in growing rapport...