Olguín’s interdisciplinary areas of expertise include Chicanx and Latinx Literary and Cultural Studies, Critical Race and Ethnic Studies, American and Latin American Studies, Postcolonial Studies, Speculative literature and film, Human Rights theory and praxis, Marxist and materialist theories, Medical Humanities, and Creative Writing. His research, writing, teaching, and service activities explore the complex relationships between vernacular culture and performances of power and counter-power in local, transnational, cross-border, and hemispheric venues.