"JOSEPH BEUYS (1921-1986) was a German sculptor, draftsman, and action artist. With his concepts of the ""expanded concept of art"" and social sculpture, he shaped the art of the second half of the twentieth century. WILHELM LEHMBRUCK (1881-1919) was a German sculptor, painter, and draftsman. He is considered one of the most significant artists of the turn of the twentieth century and had a great influence on subsequent generations of artists."