"An intrepid journalist joins the planet's largest group of nomads on an annual migration that, like them, has endured for centuries. Anna Badkhen has forged a career chronicling life in extremis around the world, from war-torn Afghanistan to the border regions of the American Southwest. In Walking with Abel, she embeds herself with a family of Fulani cowboys--nomadic herders in Mali's Sahel grasslands--as they embark on their annual migration across...