El Lissitzky (Lazar Markovich Lissitzky, 1890 - 1941) was a Russian avant garde artist and architect of Jewish descent. His constructive, typographical style influenced many of the Bauhaus artists, as he worked in Germany as a cultural ambassador of Russia. Being deep involved in the politics, the last artwork he created was a propaganda poster, urging people to build more tanks to fight against Nazi Germany.
The socialist view of art was that “Art is not a mirror to reflect the world, but a hammer with which to shape it.”
In 1978 Kraftwerk credited El Lissitzky for the design of The Man Machine album’s artwork, which was greatly inspired by him.