"In Renaissance Florence the art of drawing developed from the stiff medieval art of the 13th century into the superbly confident and three dimensional work of Leonardo and Michelangelo. Most artists of the time regarded their drawings as of no importance: they were simply sketches for paintings and other works. However, Giorgio Vasari, artist and biographer of the great artists of his time, collected many of their drawings, saving them for future generations. This book contains a selection of the finest of them, including the unique work of Fra Filippo Lippo Lippi, Paolo Uccello, Sandro Botticelli and, of course, the great masters Leonardo da Vinci and Michelangelo." - back cover.