A brief biography of Mexican artist Diego Rivera, who was best known for his public mural paintings depicting the culture and struggles of the Mexican working class. Interest Level: 5-8 Reading Level: 6.8 ATOS Book Level: 7.1 AR Interest Level: MG AR Points: 1 AR Quiz: 156520EN Reading Counts Level: 8.3 Reading Counts Points: 4 Lexile Measure: 980.