Oh, man. There is just so much in the world that I have no idea about. Maybe more detailed thoughts about this later, but probably not. I just finished, and my head is swimming.
For now this is what I have to say: Well-written, staggeringly well-researched, staggeringly and painfully personal. The story of what Henrietta Lacks's genetic legacy has done to her family is the main focus of the book, but Skloot uses that story to illuminate how criminally neglected areas of history, law, medicine, economics, and education intersect with race and class issues, is just riveting. Go out and get this one right now.