This volume accompanies a major exhibition highlighting Diego Rivera’s work in Mexico and the United States from the early 1920s through the mid-1940s. During this time in his prolific career, Rivera created a new vision for the Americas, on both national and continental levels, informed by his time in both countries. Rivera’s murals in Mexico and the U.S. serve as points of departure for a critical and contemporary understanding of one of the most aesthetically, socially, and politically ambitious artists of the twentieth century. Works featured include the greatest number of paintings and drawings from this period reunited since the artist’s lifetime, presented alongside fresco panels and mural sketches. This catalogue serves as a guide to two crucial decades in Rivera’s career, illuminating his most important themes, from traditional markets to modern industry, and devoting attention to iconic paintings as well as works that will be new even to scholars—revealing fresh insights into his artistic process.