“Diversity Explosion” is essential reading for those interested in looking under the hood of US demographic changes in the last couple decades. Splicing and analyzing 2010 Census data, author William Frey, research professor of population studies at the University of Michigan and Brookings fellow, presents a vivid case that the US is in the midst of demographic transition. With a bevy of maps, tables, and charts at his disposal, Frey explores several key racial demographic themes, including the growth and geographic dispersion of Hispanics and Asians (the so called “new minority” populations), the diminishing growth and rapid aging of the white population, reverse migration of blacks from north to south, increases in interracial marriages, and brewing political controversies that are the product of this demographic divide. All in all, this book is a masterclass in how to effectively present data and tell a story about the many brewing population trends in the country.