... most of all, Emanuel touts his own achievements: renovating O’Hare Airport, altering the school system, and luring corporate headquarters downtown, among others. It’s a spun record, denuded of the controversy that marked much of his tenure, and predictably self-serving. Nevertheless, the book brims with the author’s passion for the city’s top job. At its best, Emanuel’s chronicle offers a revelatory view into how mayors run cities, and provokes readers to ponder whether cities really might save the world..