Einwanderung in die Vereinigten Staaten
In 1925 he emigrated to the United States after denouncing corruption in the Mexican Ministry of Education. He concentrated on the subjects of migration and labor involving Mexicans in the United States, for the Social Science Research Council in Washington, D.C. Gamio published two books on this research – "Mexican Immigration to the United States" (1930) and "The Mexican Immigrant: His Life Story" (1931) – this time in English. These books have only recently been translated into Spanish for the use of present-day Mexican anthropologists and sociologists.