In the 16th century, the biographer Giorgio Vasari says that Giotto changed painting from the Byzantine style of other artists of his day, and brought to life the great art of painting as it was made by the later Renaissance painters like Leonardo da Vinci. This was because Giotto drew his figures from life, rather than copying the style them from old well-known pictures in the way that the Byzantine artists like Cimabue and Duccio did.