Lia Pinheiro Barbosa is an activist and professor of sociology at the State University of Ceará (UECE) based in Fortaleza, Brazil. She has written extensively on the Zapatistas in Mexico and the MST (Landless Workers Movement) in Brazil, including her book Educación, resistencia y movimientos sociales: la praxis educativo-política de los Sin Tierra y de los Zapatistas (Education, Resistance, and Social Movements: The Educational-Political Praxis of the MST and the Zapatistas) published in 2015 by the UNAM Press in Mexico.