Incredible read; Michelle Alexander does a great job laying out the history of Jim Crow and the new racial caste of imprisonment and what that impact has on our society. Further, she surmises at the end that continuing to  do work that is only focused on "civil rights" and not "human rights" will be unlikely to reap new rewards in the quest for racial and class equality.  An incredibly interesting read; would say more intermediate to advanced in terms of engaging with this topic; if you are new to the conversation or have trouble identifying your whiteness or your privilege as part of your journey, this book might be difficult to get through.