Elizabeth Marshall Thomas first encountered the Ju/wasi people of the Kalahari Desert in the 1950s, when she traveled with her family to study one of the last hunter-gatherer societies living as their ancestors had for tens of thousands of years. The Old Way returns to that experience decades later, reflecting on what traditional lifestyles reveal about human nature. Thomas, who became a noted writer on animal behavior, brings both scientific rigor and personal affection to her portrait of people who lived without agriculture, metal, or hierarchy. The Ju/wasi organized their lives around the hunt and the gathering of wild foods, moving across the landscape in bands of related families. Thomas describes their tracking skills, their deep knowledge of plants and animals, their social structures that prevented any individual from accumulating power. She also acknowledges the losses that came with contact: the diseases, the disruption, the eventual settlement in villages dependent on government handouts. The book argues that understanding how people lived before agriculture illuminates aspects of human nature that persist beneath modern conditions. We evolved as hunter-gatherers, and our bodies and minds still reflect that heritage. Thomas does not romanticize traditional life, noting its hardships and limitations, but she suggests that something valuable has been lost in the transition to modernity.