Book excerpt: Delving into reasons biographers assume Tuscan painter Leonardo da Vinci wrote the Notebooks, hunting down sources and original texts, South African art historian Susan Grundy uncovers it was only Leonardo’s young heir Milanese Francesco Melzi who said these were the artist's Notebooks. In the nineteenth century European scholars began to access these Notebooks in more depth, transcribing the arcane backwards Italian and translating them into English. They discovered a man who did not seem to be Tuscan Leoanrdo da Vinci, as he seemed to be a man from the East. Yet, this reality was closed down by researchers determined to continue with the myth of the self-educated genius from a farm in Tuscany.