Codex Forster II, c. 1495-1497. "This volume is part of a set of five notebooks bound in three volumes (no. I and no. II are in two parts). In them, Leonardo da Vinci wrote his notes on a wide variety of subjects: perspective, light and shade, the human figure, the practice of painting, the artist's materials, the history of the art of painting, studies and sketches for pictures and decorations, sculpture, architecture, anatomy, physiology, maxims, morals, fables, jests and tales, prophecies, draughts and schemes for his humorous writings, etc."