Most of what we know about Leonardo da Vinci, we know because of his notebooks.
He jotted down fables, epigrams, and letters and developed his belief in the sublime unity o.
With an artist\'s eye and a scientist\'s curiosity, he recorded in these pages his observations on the movement of water and the formation of rocks, the nature of flight and optics, anatomy, architecture, sculpture, and painting.
Some 6,000 sheets of notes and drawings survive, perhaps one-fifth of what he actually produced.
Most of what we know about Leonardo da Vinci, we know because of his notebooks