Constance Moffatt teaches art and architectural history at Los Angeles Pierce College. She has published on the Sforza, Leonardo, and Milanese history. Carlo Pedretti served as her dissertation advisor at UCLA, where she received her Ph.D. in art history.Sara Taglialagamba, PhD (2010), Siena University, is a researcher in Art History at INSR (Florence) and she is a Post PhD at EPHE at Sorbonne (Paris). She has published many articles and books, including I cento disegni più belli di Leonardo with Carlo Pedretti (Giunti-Treccani).