Tuesday evening, March 18, the National Geographic channel will be airing a program entitled “How It Was: Secrets of Mona Lisa.”  Included in their overview of the research on Leonardo’s famous painting will be Lillian Schwartz’s analysis.  Her discovery, first published in 1987, was recently developed further in the book Monna Lisa: Il volto nascosto di Leonardo (Florence, 2007), published in both Italian and English with co-authors Renzo Manetti and Alessandro Vezzosi.   The OSU Rare Books and Manuscripts Library is the home of the Lillian Feldman Schwartz archive.