Have the last two decades produced a New York composed of two separate and unequal cities? As the contributors to Dual City reveal, the complexity of inequality in New York defies simple distinctions between black and white, the Yuppies and the homeless. The city's changing economic structure has intersected with an increasingly diversified population, providing upward mobility for some groups while isolating others. As race, gender, ethnicity, and class become ever more critical components of the postindustrial city, the New York experience illuminates not just one great city, or indeed all large cities, but the forces affecting most of the globe.