The work analyzes postcards produced in France in the context of the Great War, or World War I (1914-1918), which are discussed as iconographic representations of events associated with the conflict. It shows that these small souvenirs communicated verbal and non-verbal messages, not only with the aim of disseminating and/or reaffirming certain elements of the collective imaginary relating to the war and the combatants, but also with the aim of contributing to its construction and perpetuation.