I got this book thinking it would indeed tell about the actual interstates - instead it did hold exclusively to the subtitle. One learns every detail of people involved with the roads - eg that the NY engineer had a game room in his basement and what kind of awning was on his house. So much of it told things which had NOTHING to do with the Roads. For me - more than uninteresting - and indeed it was pretty much of a hodgepodge in any case.
There were a few pictures - many of them pictures of these people - there was one small map (Baltimore) - a few of cars and a couple of the construction.