La Celestina
She briefly returned to Argentina from the United States in 1961. One of her last works published before she died was an essay: "Two Spanish Masterpieces, 'The Book of Good Love' and 'The Celestina'." It collected the six lectures she delivered at the University of Illinois during her tenure as a Miller Visiting Professor. She had long been interested in the Spanish classic, "The Celestina". Lida de Malkiel had worked for 15 years on her book about "La Celestina"; it was published three months after her death.