A few years ago, while I was researching a book on the history of globalization, I suddenly realized that I was seeing the same two names on a lot of the smartest stuff I was reading. The names belonged to two economists, Daron Acemoglu and James Robinson. Much of their work focused on a single question: Why are poor places poor, and is there something we can do about it?

This is one of the most important questions imaginable in economics—indeed, in the world today. It is also one of the most politically fraught. In working on my book, I read numerous attempts by economists, historians and other researchers to explain why most of North America and Europe is wealthy and why most of Asia, Africa and Latin America is not. But these usually boiled down to claims that rich nations had won the game by cheating poor places or that poor places had inherently inferior cultures (or locations) which prevented them from rising. Conservative economists used the discussion as a chance to extol the wide-open markets they already believed in; liberal economists used it to make the attacks on unrestrained capitalism they were already making. And all too often both seemed wildly ignorant of history. I can’t recall encountering another subject on which so many people expended so much energy to generate so little light.

Acemoglu and Robinson were in another category entirely. They assembled what is, in effect, a gigantic, super-complete database of every country’s history, and used it to ask questions—wicked smart questions. They found unexpected answers—ones that may not satisfy partisans of either side, but have the ring of truth.

Why Nations Failis full of astounding stories. I ended up carrying the book around, asking friends,“Did you know this?” The stories make it a pleasure to read. More important, though, Acemoglu and Robinson changed my perspective on how the world works. My suspicion is that I won’t be the only person to say this after readingWhy Nations Fail.

In this incisive critique, former litigator-turned-legal-scholar Michelle Alexander provocatively argues that we have not ended racial caste in America: we have simply redesigned it. Alexander shows that, by targeting black men and decimating communities of color, the U.S. criminal justice system functions as a contemporary system of racial control, even as it formally adheres to the principle of color blindness.The New Jim Crowchallenges the civil rights community--and all of us--to place mass incarceration at the forefront of a new movement for racial justice in America.

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In the town of Ada, Oklahoma, Ron Williamson was going to be the next Mickey Mantle. But on his way to the Big Leagues, Ron stumbled, his dreams broken by drinking, drugs, and women. Then, on a winter night in 1982, not far from Ron’s home, a young cocktail waitress named Debra Sue Carter was savagely murdered. The investigation led nowhere. Until, on the flimsiest evidence, it led to Ron Williamson. The washed-up small-town hero was charged, tried, and sentenced to death—in a trial littered with lying witnesses and tainted evidence that would shatter a man’s already broken life, and let a true killer go free.

Impeccably researched, grippingly told, filled with eleventh-hour drama, John Grisham’s first work of nonfiction reads like a page-turning legal thriller. It is a book that will terrify anyone who believes in the presumption of innocence—a book no American can afford to miss.