 In Kamishibai a street performer uses Emakimono "picture scrolls" to convey the story of the play.Audiences typically included children who would buy candy from the street performer providing his source of income.Unlike American propaganda that often focused on the enemy, Japanese wartime "National Policy" Kamishibai usually focused on themes of self-sacrifice for the nation, the heroism of martyrs, or instructional messages such as how to respond to an air-raid warning.