Leonardo da Vinci’s Paintings selection, following his technical evolutions and biographical notions. Renaissance artistic period included in a span of time ranging from the mid-fourteenth century until the sixteenth century, study and rediscovered with every instrument of the ancient models: the sense of beauty, the harmony of proportions, the taste for exterior perfection. Formulation of rules of linear perspective centric and unitary space-physiognomy and anatomy and in the representation of Emotions. From gothic, Reemerges vigorously in the second half of 1400, a radical change of setting compared to the archaic numismatic portrait, is the rebirth of thought and secular arts, after the long period of exclusive Christian Monopoly. A code, made of signs, symbols, art is liberal, intellectual activity, economic flowering of cities such as florence, Milano, Ferrara, Mantova and Venezia. The secular conception is a peculiarity of Leonardo da Vinci where, Contrary to the classical schemes, there were hidden blasphemous images. All the pictorial works have in common bistro-based pigments for the execution of the light-dark. Some dates have been revalued according to our studies, the attributed paintings still lack the scientific .