Refers to the movement in Mexico, spearheaded by artists Diego Rivera and David Alfaro Siquieros, which sought to elevate and legitimize mural works as a recognized Mexican art form. The Mexican Muralist School, which included Rufino Tamayo, Juan Soriano, and José Clemente Orozco, politicized the movement, often depicting scenes from the Mexican Revolution, aspects of the nation's modernization, the relentless social upheavals with class struggles in satirical and life-like styles.