In 2002, Florida’s best-selling book, “The Rise of the Creative Class,” focused on a demographic shift happening around the world — an urban revival sparked by young, creative, tech-savvy professionals. Now, 15 years later, Florida has written a far more sobering book, “The New Urban Crisis.” It explores a darker side of the urban renaissance, something he calls “winner-take-all urbanism.” Florida sees deepening inequality in our cities, growing segregation and poverty, and the disappearance of the middle class. Florida will discuss his new book, the dimensions of the challenge facing not only cities but suburbs, and what can be done about it.