Posters were one of the most important means of spreading propaganda during World War I, as radio and television were not available. Posters could be found in newspapers, billboards, or posted on walls in theaters, restaurants and schools. The format of posters allowed quick and easy distribution of ideas, patriotic themes and messages that could be aimed at all ages and walks of life. Almost all the governments of the nations involved in the Great War invested heavily in their production. Posters filled an important role in the war as they could range from simple messages which grabbed your attention, easy to understand. A poster could be used to recruit men for the war, raise public opinion as well as their financial support.