Editor’s comment:  Isaacson rides again, making a well-chronicled figure interesting in a different way, as he did with Einstein and Jobs.  His research is outstanding and it helps a non-artist like me that he accompanies most references with pencils, diagrams, notes, paintings and sculptures of the great master. 

Favorite excerpt:  The only thing straightforward about the perspective in The Last Supper, is the vanishing point, where all the lines of sight “tend and converge” in Leonardo’s words.