‘John Heartfield (1891–1968) is the anglicized name of the German photomontage artist Helmut Herzfeld. Heartfield developed photomontage into a form of political and artistic expression. His photomontages satirising Adolf Hitler and the Nazis often subverted Nazi symbols such as the swastika in order to undermine their propaganda message.
In this photomontage Hitler is depicted as a gorilla on top of the world with a sword in his hand. I personally feel that this is a really powerful photomontage as it depicts Hitler as a slightly less intelligent creature.