Leonardo da Vinci's 'Mona Lisa' is undoubtedly one of the most famous paintings, if not the most famous painting, in the world. This fascinating book reveals the results of an unprecedented in-depth study of the Mona Lisa that took place in 2004 and 2005 at the Louvre Museum in Paris, where the portrait is on view. The Louvre's analyses revealed a wealth of enlightening data - most of it entirely new - about the period during which the portrait was painted, and about its more recent history, as well.