"During World War I, the impact of the poster as a means of communication was greater than at any other time during history. The ability of posters to inspire, inform, and persuade combined with vibrant design trends in many of the participating countries to produce thousands of interesting visual works. The Library of Congress Prints & Photographs Division makes available online approximately 1,900 posters created between 1914 and 1920. Most relate directly to the war, but some German posters date from the post-war period and illustrate events such as the rise of Bolshevism and Communism, the 1919 General Assembly election and various plebiscites.
The majority of the posters were printed in the United States. Posters from Australia, Austria, Belgium, Canada, Germany, Great Britain, Italy, the Netherlands, and Russia are included as well. The posters range in style from anonymous broadsides (predominantly text) to graphically vibrant works by well-known designers. The Library acquired these posters through gift, purchase, and exchange or transfer from other government institutions, and continues to add to the collection."