Earlier this week I mentioned a paper by Ross S. Kilpatrick that claims the Leonardo da Vinci masterpiece, the Mona Lisa , incorporates images inspired by the Roman poet Horace and Florentine poet Petrarch. Dr. Kilpatrick was kind enough to send me a link to the paper, Horace, Petrach and Leonardo da Vinci. Literary Invention and Self-Presentation in the Mona Lisa . [PDF]