In the course of my research, I visited both San Gimignano and Siena and consulted many books. I owe a great debt to the seminal work of Cennino d’Andrea Cennini. Quotes from his work Il Libro dell’Arte translated by Daniel V. Thompson begin every chapter in the novel and provide a wonderful glimpse into the workshops of late medieval and early Renaissance painters. Other very useful books include:
Boccacio, Giovanni. The Decameron. Oxford: Oxford University Press, 1351?, 1993. Translation by Guido Waldman.
Cole, Bruce. The Renaissance Artist at Work: From Pisano to Titian. London: John Murray, 1983.
Dean, Trevor. The Towns of Italy in the Later Middle Ages. New York: Manchester University Press, 2000.
Frugoni, Chiara. A Day in A Medieval City. Chicago: University of Chicago Press, 2005.
Jansen, Katherine L., Joanna Drell, and Frances Andrews, Eds. Medieval Italy: Texts in Translation. Philadelphia: University of Pennsylvania Press, 2009.
Kelly, John. The Great Mortality: An Intimate History of the Black Death, the Most Devastating Plague of All Time. New York: Harper Perennial, 2005.
Maginnis, Hayden B.J. The World of the Early Sienese Painter. University of Pennsylvania Press, 2001.
Norman, Diana. Painting in Late Medieval and Renaissance Siena. New Haven and London: Yale University Press, 2003.
Ward, Jennifer. Women in Medieval Europe 1200-1500. London: Pearson Education, 2002.
Wiesner-Hanks, Merry E. Women and Gender in Early Modern Europe. New York: Cambridge University Press, 2008.