When Elizabeth Marshall Thomas first arrived in Africa to live among the Kalahari San, or bushmen, it was 1950, she was 19 years old, and these last surviving hunter-gatherers were living as humans had lived for 15,000 centuries. Thomas wound up writing about their world in a seminal work, The Harmless People. It has never gone out of print.

Back then, this was uncharted territory, and little was known about our human origins. Today, our beginnings are better understood. And after a lifetime of interest in the bushmen, Thomas has come to see that their lifestyle reveals great, hidden truths about human evolution.

As she displayed in her best seller, The Hidden Life of Dogs, Thomas has a rare gift for giving voice to the voices we don't usually listen to. She helps us see the path that we have taken in our human journey. In The Old Way, she shows how the skills and customs of the hunter-gatherer share much in common with the survival tactics of our animal predecessors. And since it is "knowledge, not objects, that endure" over time, Thomas vividly brings us to see how linked we are to our origins in the animal kingdom. The Old Way is a rare and remarkable achievement, sure to stir up controversy, and is worthy of celebration.