Caste: The Origins of Our Discontents is a nonfiction book by the American journalist Isabel Wilkerson that was initially published in August 2020 by Random House. The book describes racism in the United States as an aspect of a caste system – a society-wide system of social stratification characterized by notions such as hierarchy, inclusion and exclusion, and purity. Wilkerson does so by comparing aspects of the experience of American people of color to the caste systems of India and Nazi Germany, and she explores the impact of caste on societies shaped by them, and their people.
Caste, which followed Wilkerson's 2010 book The Warmth of Other Suns, was met with critical acclaim and commercial success. It won or was nominated for several awards, and was featured prominently on nonfiction bestsellers lists and year-end best-books lists. (https://en.wikipedia.org/wiki/Caste:_The_Origins_of_Our_Discontents)