John Heartfield (born Helmut Herzfeld; 19 June 1891 – 26 April 1968) was an artist and a pioneer in the use of art as a political weapon. Some of his photomontages were anti-Nazi and anti-fascist statements. Heartfield also created book jackets for authors such as Upton Sinclair, as well as stage sets for such noted playwrights as Bertolt Brecht and Erwin Piscator.
Karel Teige (13 December 1900- 1 October 1951) was a Czech modernist avant-garde artist, writer, critic and one of the most important figures of the 1920s and 1930s movement. He was a member of the Devětsil (Butterbur) movement in the 1920s and also worked as an editor and graphic designer for Devětsil’s monthly magazine ReD (Revue Devětsilu). One of his major works on architecture theory is The Minimum Dwelling (1932).
-wikipedia, Karel Teige