These magazine covers from the 1920's are beautiful and inspiring. Simplicissimus was a satirical German Magazine started by Albert Langen in April 1896 and published through 1967. Contributors included writers Thomas Mann, Herman Hesse, Rainer Maria Rilke, and artists George Grosz and Käthe Kollwitz. Read more about history here: wikipedia
See more covers at ephemera assemblyman (thanks!) and at their website archive: Simplicissimus Magazine.