This was absolutely fantastic. The narratives of the three protagonists were heartbreaking, awe inspiring, sometimes lovely and sometimes frustrating. They were all so deeply human. The history is fascinating. The writing is lovely and engaging. Wilkerson is a wonder. I don't often buy nonfiction books because I try to save my purchases for books I know I'll reread, but I think I'll make an exception for this. Truly wonderful, as is Caste.