In the capital of Ghana, a teenager nicknamed “Condom Sister” trolls the streets to educate other young people about contraception. Her work and her own aspirations point to a remarkable shift not only in the West African nation, where just a few decades ago women had nearly seven children on average, but around the globe. While world population continues to grow, family size keeps dropping in countries as diverse as Switzerland and South Africa.


The phenomenon has some lamenting the imminent extinction of humanity, while others warn that our numbers will soon outgrow the planet’s resources. Robert Engelman offers a decidedly different vision—one that celebrates women’s widespread desire for smaller families. Mothers aren’t seeking more children, he argues, but more for their children. If they’re able to realize their intentions, we just might suffer less climate change, hunger, and disease, not to mention sky-high housing costs and infuriating traffic jams.


In More, Engelman shows that this three-way dance between population, women’s autonomy, and the natural world is as old as humanity itself. He traces pivotal developments in our history that set population—and society—on its current trajectory, from hominids’ first steps on two feet to the persecution of “witches” in Europe to the creation of modern contraception. Both personal and sweeping, More explores how population growth has shaped modern civilization—and humanity as we know it.


The result is a mind-stretching exploration of parenthood, sex, and culture through the ages. Yet for all its fascinating historical detail, More is primarily about the choices we face today. Whether society supports women to have children when and only when they choose to will not only shape their lives, but the world all our children will inherit.

As Mexico entered the last decade of the sixteenth century, immigration became an important phenomenon in the mining town of San Luis Potosí. New silver mines sparked the need for labor in a region previously lacking a settled population. Drawn by new jobs, thousands of men, women, and children poured into the valley between 1591 and 1630, coming from more than 130 communities across northern Mesoamerica.

The Motions Beneath is a social history of the encounter of these thousands of indigenous peoples representing ten linguistic groups. Using baptism and marriage records, Laurent Corbeil creates a demographic image of the town’s population. He studies two generations of highly mobile individuals, revealing their agency and subjectivity when facing colonial structures of exploitation on a daily basis.

Corbeil’s study depicts the variety of paths on which indigenous peoples migrated north to build this diverse urban society. Breaking new ground by bridging stories of migration, labor relations, sexuality, legal culture, and identity construction, Corbeil challenges the assumption that urban indigenous communities were organized along ethnic lines. He posits instead that indigenous peoples developed extensive networks and organized themselves according to labor, trade, and social connections.