Description Celestina and Castilian Humanism at the End of the Fifteenth Century is the third in a series of publications occasioned by the annual Bernardo Lecture at the Center for Medieval and Early Renaissance Studies (CEMERS). This series is designed to make available to a broad audience studies on a wide variety of subjects by leading medieval and Renaissance scholars. Arroyo argues that the Comedia de Calisto y Melibea is a drama grounded in the western humanist tradition, reflecting the fusion of scholastic theology and popular and Aristotelian ethics typical of Spanish humanism around 1500. The didactic and moral framework harmonizes with the author’s awareness of the comic, not tragic, nature of his text. Ciriaco Morón Arroyo, currently Emerson Hinchliff Professor of Hispanic Studies in Comparative Literature at Cornell University, has written and edited a broad range of works on Spanish medieval literature, philosophy and culture, including books on the metaphysics of Bonaventura, on Don Quixote, Calderon, Ortega, y Gasset, and on the Celestina.