Leonardo da Vinci has become an international commodity. His name is used to market museums, art galleries, exhibitions and all kinds of merchandise. Nearly all of Leonardo's paintings, however, reside in public galleries, a type of institution which did not exist when he was active. This scholarly book looks into such matters and considers the movement of seven of Leonardo's most famous paintings and concludes that the process of their diffusion and the complex lives of his paintings are the result of a variety of disparate and unpredictable factors.