Leonardo da Vinci 1452-1519: Artist and Scientist by Frank Zollner, Taschen, Hohenzollernring, 2005.
Needless to say, Leonardo was an interesting man; And a remarkable artist. He is most known for two painting, “Mona Lisa” and “The Last Supper.” However he also drew many anatomical sketches, as well as flying machines. Because he was so involved in so many things sometimes his paintings would remain unfinished. He sculpted and drew. Most of his painting had studies drawn before they were actually completed. He drew a series of grotesque faces. He painted several renditions of John the Baptist. Using infrared technology it has been noted his paintings often have drawings under, which are not necessarily the same as the painting.