 Emerton also authored several widely read textbooks for high school and college students, including "Mediaeval Europe, 814–1300" and "An Introduction to the Study of the Middle Ages (375-814)", which were highly acclaimed by his contemporaries.Professor Emerton's texts were standard reading within the American educational system for decades after their publication.A facility for languages never left Emerton, and the translation of medieval German and Latin texts to contemporary English language was his special occupation.