In Countdown, science journalist Sarah Scoles uncovers a different atomic reality: the nuclear age's present. Drawing from years of on-the-ground reporting at the nation's nuclear weapons labs, Scoles interrogates the idea that having nuclear weapons keeps us safe, deterring attacks and preventing radioactive warfare. She deftly assesses the existing nuclear apparatus in the United States, taking listeners beyond the news headlines and policy-speak to reveal the state of nuclear-weapons technology.

Hal Brands argues that a better understanding of Eurasia's strategic geography can illuminate the contours of rivalry and conflict in today's world. The Eurasian Century explains how revolutions in technology and warfare, and the rise of toxic ideologies of conquest, made Eurasia the center of twentieth-century geopolitics—with pressing implications for the struggles that will define the twenty-first.

The air conditioner is often hailed as one of the modern world's greatest inventions—yet nearly as often blamed for global disaster. It has changed everything from architecture to people's food habits; saved countless lives, and caused countless deaths. First appearing in 1902, when Willis Carrier, an engineer barely out of college, developed the "Apparatus for Treating Air," everyone assumed it would instantly change the world. But the story of air conditioning and its rise to ubiquity is far from simple.

In Enslavement: Past and Present, historical sociologist Orlando Patterson casts a wide net to examine the social, political, and economic complexities of slavery across different eras and societies. Patterson examines slavery at several levels of abstraction, from micro-level relations of domination to the macro-structures of entire societies.

Where do human societies come from? The drive to answer this question took on a new urgency in the nineteenth century, when a generation of archaeologists began to look beyond the bible for the origins of different cultures and civilizations. Zelia Nuttall threw herself into the study of Aztec customs and cosmology, eager to use the tools of the emerging science of anthropology to prove that modern Mexico was built over the ruins of ancient civilizations.