Original exhibition poster by John Heartfield. 67 x 49 cm, as new. John Heartfield (born Helmut Herzfeld; 19 June 1891 26 April 1968) was a 20th-century German visual artist who pioneered the use of art as a political weapon. Some of his most famous photomontages were anti-Nazi and anti-fascist statements. Heartfield also created book jackets for book authors, such as Upton Sinclair, as well as stage sets for contemporary playwrights, such as Bertolt Brecht and Erwin Piscator.