Prof. Sessarego teaches undergraduate and graduate courses on Hispanic Linguistics. He works primarily in the fields of contact linguistics, sociolinguistics and syntax. His current research focuses on Afro-Hispanic contact varieties and on the syntax and semantics of the Determiner Phrase (DP). He is the author of Introducción al idioma afroboliviano: Una conversación con el awicho Manuel Barra (Plural Editores, 2011), Chota Valley Spanish (Iberoamericana/Vervuert, 2013), The Afro-Bolivian Spanish Determiner Phrase (The Ohio State University Press, in press). He is the co-editor, with Melvin González-Rivera, of Current Formal Aspects of Spanish Syntax and Semantics (Cambridge Scholars Publishing, 2012) and New Perspectives on Hispanic Contact Linguistics in the Americas (Iberoamericana/Vervuert, in press).