Harry Sieber is one of the foremost scholars of Renaissance and Baroque Spanish literature. His expertise reaches back to the late Middle Ages and forward to early modern Spanish literature and culture. His research and publications cover early Spanish theater (Gómez Manrique, Gil Vicente), the Golden Age Comedia (Juan de la Cueva, Lope de Vega, Luis Velez de Guevara, Calderón de la Barca), the works of Francisco de Quevedo (Buscón, Sueños), Spanish romances of chivalry, sixteenth-and seventeenth-century historiography, and literary patronage in the Court of Philip III. His books focus on authors such as Cervantes (Wit and Wisdom of Don Quixote and his Novelas ejemplares), and the picaresque novel (The Picaresque and Language and Society in the ‘Lazarillo de Tormes’). He also researched and curated the first digital exhibition of the Peabody Library Cervantes Collection, “Don Quixote On-line: A Virtual Exhibit,” a project of the Milton E. Eisenhower Library. More recently Prof. Sieber has focused his research on the social, historical and political contexts of Golden Age Spanish literature, with particular emphasis on patron/client relationships, the Spanish aristocracy, print culture, and historiography.