Oprah's latest Oprah's Book Club pick is "Caste: The Origins of Our Discontents" by Isabel Wilkerson. Gayle King and Oprah Winfrey spoke to the author about the book Oprah calls the most important read for all of humanity right now | CBS Mornings

Pulitzer Prize-winning journalist and author Isabel Wilkerson explains the premise of her book, “Caste: The Origins of Our Discontents,” and points out that the United States continues to perpetuate a caste system designed by the country’s founders. Check out the book, now available in paperback. | The Late Show with Stephen Colbert

My next Oprah's Book Club pick, “Caste: The Origins of Our Discontents” by Isabel Wilkerson, should be required reading for humanity. It eloquently examines the unspoken caste system that has shaped America. In writing this book, Isabel responds to a calling from the ancestors—and the ancestors are pleased. Download a copy here: apple.co/Oprahs-Book-Club #ReadWithUs | Oprah Winfrey