This is an artificial collection that has two series and is comprised of posters relating to World War I. Most of the posters held in this collection are one-sheet in size (27"x41"). Many are regarding enlistment and monetary contributions to the war effort in the United States, Canada, Great Britain and France. The first series contains materials from the United States with the second series containing materials from Canada, France, and Great Britain. The collection consists of broadsides comprised primarily of text and graphic works by anonymous and well-known artists, including James Montgomery Flagg and Joseph Pennell. The majority of the posters are in English, with some posters in French.