Why did the size of the US economy increase by three percent on one day in mid-2013 - or Ghana's balloon by 60 percent overnight in 2010? Why did the UK financial industry show its fastest expansion ever at the end of 2008 - just as the world’s financial system went into meltdown? And why was Greece’s chief statistician charged with treason in 2013 for apparently doing nothing more than trying to accurately report the size of his country’s economy? The answers to all these questions lie in the way we define and measure national economies around the world: Gross Domestic Product.

Every day, we use our computers to perform remarkable feats. A simple web search picks out a handful of relevant needles from the world's biggest haystack. Uploading a photo to Facebook transmits millions of pieces of information over numerous error-prone network links, yet somehow a perfect copy of the photo arrives intact. Without even knowing it, we use public-key cryptography to transmit secret information like credit card numbers, and we use digital signatures to verify the identity of the websites we visit.

Confused about AI and worried about what it means for your future and the future of the world? You’re not alone. AI is everywhere—and few things are surrounded by so much hype, misinformation, and misunderstanding. In AI Snake Oil, computer scientists Arvind Narayanan and Sayash Kapoor cut through the confusion to give you an essential understanding of how AI works, why it often doesn’t, where it might be useful or harmful, and when you should suspect that companies are using AI hype to sell AI snake oil—products that don’t work, and probably never will.

Society has never been more egalitarian—in theory. Prejudice is taboo, and diversity is strongly valued. At the same time, social and economic inequality have exploded. In We Have Never Been Woke, Musa al-Gharbi argues that these trends are closely related, each tied to the rise of a new elite—the symbolic capitalists.

For all the attempts to understand the state of American politics and the blue/red divide, we've ignored what economic and cultural loss can do to pride. What happens, Arlie Russell Hochschild asks, when a proud people in a hard-hit region suffer the deep loss of pride and are confronted with a powerful political appeal that makes it feel "stolen"? Hochschild's research drew her to Pikeville, Kentucky, in the heart of Appalachia, within the whitest and second-poorest congressional district in the nation.