It's a fast read and won't take much time, and it's really, really good.

My brain reminded me that there's a Billy Bragg song http://www.billybragg.co.uk/releases/albums/talking_taxman/talking7.html that refers to "Rally Round the Flag," one of the Union songs on that album. I amazed my law school roommate 20 years ago (who, unlike me, is a serious musicophile, if that's a word) by telling him the reference. He had no idea and was amazed I knew something about music that he didn't.