I've always been a fan of posters. Here are some German wartime posters that I thought interesting.
staubt.jpg
This poster was released in summer 1940. German morale reports found that it was effective. The text translates as: "Smash the Enemies of Greater Germany!" A literal translation would be: "Into Dust with All Enemies of Greater Germany."
bauer2.jpg
This poster dates to early in the war. A farmer smashes the blockade. The Allied blockade of Germany during World War I had seriously hurt the war effort. The poster claims that Germany's food supply is secure in the new war. The text: "Farmer! You are a soldier in the battle of production."
waffenss.jpg
This is an SS recruiting poster. It says one can join at 18, and sign up for shorter or longer periods of service. It gives the address of the recruiting office in Munich.
sieg1.jpg
The caption of this 1940 poster translates: "Victory is with our Flags." 650,000 copies were distributed.
Source:
Calvin College