Craig Childs bears witness to rock art of the Colorado Plateau—bighorn sheep pecked behind boulders, tiny spirals in stone, human figures with upraised arms shifting with the desert light, each one a portal to the open mouth of time. With a spirit of generosity, humility, and love of the arid, intricate landscapes of the desert Southwest, Childs sets these ancient communications in context, inviting listeners to look and listen deeply.

In Four Lost Cities, acclaimed science journalist Annalee Newitz takes listeners on an entertaining and mind-bending adventure into the deep history of urban life. Investigating across the centuries and around the world, Newitz explores the rise and fall of four ancient cities, each the center of a sophisticated civilization: the Neolithic site of Çatalhöyük in Central Turkey, the Roman vacation town of Pompeii in Italy, the medieval megacity of Angkor in Cambodia, and the indigenous metropolis Cahokia, which stood beside the Mississippi River where East St. Louis is today. 

Pulitzer Prize winner Wallace Stegner recounts the remarkable career of Major John Wesley Powell, the distinguished ethnologist and geologist who explored the Colorado River, the Grand Canyon, and the homeland of the Southwest Indian tribes. This classic work is a penetrating and insightful study of the Powell’s career, from the beginning of the Powell Survey, in which Powell and his men famously became the first to descend the Colorado River, to his eventual expulsion from the Geological Survey.

In 1908, near Folsom, New Mexico, a cowboy discovered the remains of a herd of extinct giant bison. By examining flint points embedded in the bones, archeologists later determined that a band of humans had killed and butchered the animals 12,450 years ago. This discovery vastly expanded America's known human history but also revealed the long-standing danger Homo sapiens presented to the continent's evolutionary richness. Distinguished scholar Dan Flores's ambitious history chronicles the epoch in which humans and animals have coexisted in the "wild new world" of North America.

Born in Blackness vitally reframes the story of medieval and emerging Africa, demonstrating how the economic ascendancy of Europe, the anchoring of democracy in the West, and the fulfillment of so-called Enlightenment ideals all grew out of Europe's dehumanizing engagement with the "dark" continent. In fact, French reveals, the first impetus for the Age of Discovery was not—as we are so often told, even today—Europe's yearning for ties with Asia, but rather its centuries-old desire to forge a trade in gold with legendarily rich Black societies in the heart of West Africa.