Describes the life and work of the courageous man who changed the way people saw the galaxy, by offering objective evidence that the earth was not the fixed center of the universe.

For more than thirty years-half his life-he was obsessively devoted to investigating Everything in the natural world. Nothing escaped his interest-how our eyes see, why the sky is blue, what forces build mountains, how light travels, where water comes from, and-most fascinating of all to Leonardo-the inner workings of the human body. Nothing stopped him. It was illegal to dissect human corpses, so he did autopsies in secret, even devising a clever...

"He was history's most creative genius. What secrets can he teach us? The author of the acclaimed bestsellers Steve Jobs, Einstein, and Benjamin Franklin brings Leonardo da Vinci to life in this exciting new biography. Based on thousands of pages from Leonardo's astonishing notebooks and new discoveries about his life and work, Walter Isaacson weaves a narrative that connects his art to his science. He shows how Leonardo's genius was based on skills...