“Good writing,” Gladwell says in his preface, “does not succeed or fail on the strength of its ability to persuade. It succeeds or fails on the strength of its ability to engage you, to make you think, to give you a glimpse into someone else’s head.” What the Dog Saw, brings together the bittersweet tale of the inventor of the birth control pill, and the dazzling inventions of the pasta sauce pioneer Howard Moscowitz. Gladwell sits with Ron Popeil, the king of the American kitchen, and divines the secrets of Cesar Millan, the “dog whisperer” who can calm savage animals with the touch of his hand.