The unexpected way Leonardo learned to paint Mona Lisa and Jesus

The research he did for his famous enigmatic smiles had a touch of the macabre.With news of the record-breaking $450 million sale of Leonardo da Vinci’s portrait of Jesus, “Salvator Mundi,” one could be excused for asking, “How could a painting be worth that much?” For Walter Isaacson, author of the book Leonardo da Vinci, Read More…