This year’s fierce election battle prompted me to pick up this 2014 book, by an Oxford University scholar who has studied political leadership—good, bad, and ugly—for more than 50 years. Brown shows that the leaders who make the biggest contributions to history and humanity generally are not the ones we perceive to be “strong leaders.” Instead, they tend to be the ones who collaborate, delegate, and negotiate—and recognize that no one person can or should have all the answers. Brown could not have predicted how resonant his book would become in 2016.