What are good books for understanding contemporary Boston and Mass. politics?

Though I’ve spent most of my adult life in “Greater Boston” but I don’t feel like I know the granular, “Inside Baseball” of what makes Boston tick. I’ve read ‘Common Ground’ and ‘The Last Hurrah and some basic history, but what are the authoritative books that say who’s who and how things really are? Like what’s the story with the BRA? Is there an Encyclopedia Bostonia? What families have power that you don’t read about in the papers? What are politicians’ long term aims?