Based on countless pages of Leonardo da Vincis notebooks as well as discoveries about his life and work, Walter Isaacson creates a chronological account connecting Leonardos art and science to the inner workings of his mind. He narrates Leonardos genius which had blurred the lines between talent and constant self-improvements like his relentless curiosity, careful observation, and limitless imagination.His creativity stemmed from an interest in various disciplines which had led him to extensively drawing accurate representations of the human body to the painting of historys most enigmatic smile. He explored optics, upon light reflecting the eyes which had provided the changing perspectives in The Last Supper. Isaacson accounts Leonardos love for pageantry which had informed his paintings and inventions.