From its earliest days, hip hop was more than just music, encapsulating the ideas of community and exchange. Artists like Mellow Man Ace and Kid Frost opened doors by infusing Spanish into their lyrics, calling for racial and social equality; others employed hip hop to comment on the effects of neo-liberalization and global capital. In recent decades, the cultural exchange has expanded-the music traveling from the United States to Latin America and back as visual artists, music producers, MCs, vocalists, and dancers combine their Latin cultures with influences from north of the U.S. border to...