Caste: The Origins of Our Discontents by Isabel Wilkerson examines the unspoken caste system that has shaped America and shows how our lives today are still defined by a hierarchy of human divisions. Wilkerson explores eight pillars that underlie caste systems across civilizations, using riveting stories about people, she shows the ways that the insidious undertow of caste is experienced everyday. Over the course of the next three months, our learning and sharing will lead to actions we can take today, small or large.