I like that that book gives copious references to the sources of their info. Following up on several that go back to Livy, it's remarkable how much they extrapolate from what are actually very scant references in the original sources. Eg- They give us the impression that Tarquinus Priscus built an elaborate stadium when Livy merely says in effect that he assigned places to the senators and equities and some built platforms 12 ft tall from which to view the games.