Carleton Beals was an American journalist, writer, historian, and political activist with a special interest in Latin America. A major journalistic coup for him was his interview with the Nicaraguan rebel Augusto Sandino in February 1928. In the 1920s he was part of the cosmopolitan group of intellectuals, artists, and journalists in Mexico City. He remained an active, prolific, and politically engaged leftist journalist and is the subject of a scholarly biography. No. 1 on The New York Times Nonfiction best seller list for 1 week, from the issue of September 18, 1933. Wiki link