The Parole der Woche was a weekly current events poster issued by the Nazi Party between 1936 and 1943, when it was discontinued due to paper shortages caused by the war. It was a commentary on current events, and reflected the central propaganda message of the week. They were accompanied by a playing card sized condensed version that was often pasted to the backs of official correspondence.
I have added two of them from my collection. The first, from fall 1941, boasts of German submarine successes. The second was issued in spring of 1942, and accuses England of being a Soviet puppet.