In the 1940s and 1950s the AA Knopf publishing undertook a series of efforts aimed at combating U.S. isolationism. This paper explores how the Knopfs, with help from the U.S. Department of State, used the power of their press to popularize Latin American writers and implement political and cultural change within the U.S. It reveals how this cultural project also involved espionage and propaganda abroad. Finally this project investigates the ways in which the publishing house edited some Latin American writers to conform to U.S. political views and tastes.