"Emperor Jones" is a play written by Eugene O'Neill in 1920. The play is written in expressionistic style, which is a theatrical style that emphasizes the inner feelings and thoughts of characters rather than their external reality. In "Emperor Jones," the main character's descent into madness is portrayed through a series of surreal and symbolic scenes that reflect his psychological state. The play is also notable for its use of African American vernacular and its exploration of themes related to race and power.