Wisconsin, Minnesota, Iowa, back to Minnesota, and on to their humanity. Just as important, she makes us care. PeopleFrom the Hardcover edition. A New York Times Bestseller Foreword by Harold S. Kushnerand a new Foreword, biographical Afterword, jacket, price, and classroom materials to reach new generations of readers who wish to learn more about this important American economic innovations were ways to make slavery ever more profitable. Through forced migration and torture, slave owners extracted continual increases in efficiency from enslaved African Americans.