New York Underground: The Anatomy of a City Book

My Book Club is planning a tour of Grand Central Terminal in October and this book made the list of possible books to read before our meeting.. .. I have to say it was pretty interesting, a relatively quick read and there were lots of pictures... I think it could have bee wayyy better if the author had provided maps or even a map of the city and it's environs for those of us not exactly familiar with every location she was talking about... I understand for security reasons she was loath to provide details of "openings" but a map showing where old ponds and streams etc were in relation to the current city would have helped enormously... Also to have visuals as to where the various bridges are located... Anyway... There were only dribs and drabs of interesting things in my opinion and many of these were provided as "asides"..