Dr. Colmeiro received his Ph.D. from the University of California Berkeley in Hispanic Languages and Literatures. At MSU, he has taught graduate courses on modern Spanish literature and cultural studies, Hispanic cinema and popular music. His directed research also includes Galician, Spanish and Latin American literature, detective fiction, gender studies, and Hispanic transatlantic studies.

He has published more than 50 articles and book chapters on Hispanic cultural studies, comparative and global studies, and Galician cultural studies, and has published three single-authored books: on Spanish detective fiction (La novela policiaca española), on historical memory and cultural identity  in modern Spain (Memoria historica e identidad cultural), and on Manuel Vázquez Montalbán's popular fiction  (Crónica del desencanto), which won the "Letras de Oro" prize in the US for best essay book in Spanish. He has also been the editor of four books of critical editions and collective monographs, and co-editor of the book Spain Today: Essays on Literature, Culture and Society. Currently he is writing a monograph on Galician cultural studies entitled “Peripheral Visions, Global Positions: Remapping Galician Culture.”