Guillermo Palacios is a retired professor of history at El Colegio de México, where he was director of the Centro de Estudos Históricos and Coordinator of the Chairs of Brazilian Studies. He earned his PhD in history from Princeton University. He has been a professor-researcher at the Fundação Getúlio Vargas (Rio de Janeiro) and the Centro de Pós-Graduação em Agricultura e Sociedade (CPDA) of the Universidade Federal Rural do Rio de Janeiro, the Centro de Investigación y Docencia Económicas (CIDE) of Mexico City, and El Colegio de Michoacán. He is a member of the Academia Mexicana de Ciencias and the Sistema Nacional de Investigadores (SNI). He has been a Fellow at the Kellogg Institute for International Studies at the University of Notre Dame and Visiting Professor at the Universidad Autónoma de Madrid. Between 2013 and 2017 he served as Cultural Attaché at the Embajada de México in Brazil. He is Senior Editor of the Brazil section of the Oxford Research Encyclopedia of Latin AmericanHistory.