Should be required reading for all white people. If you or anyone you know has trouble understanding why "Black Lives Matter" is NOT a subset of "All Lives Matter," I think this book can illustrate the answer. 
 Isabel Wilkerson patiently, meticulously, and loving constructs portraits of real people whose lives were shaped, deformed, and stunted by racism and segregation in the South, East, North, and West. I don't see how anyone could read this and not care.