This volume is ideal for anyone who likes to challenge commonly-held notions of nation, identity and national history.
I only read editor Joshua Fogel's introduction and the four chapters dealing with modern Chinese history, specifically the historical juncture when the dynastic empire was transformed into a nation-state in the late Qing and Republican eras. I've noticed that many of the Ivy League scholars/historians featured here are associated with the New Qing History movement and one shouldn't be surprised by their characteristically anti-sinocentric stance. The culturalism-to-nationalism thesis is familiar, and these chapters added nuanced elaborations that drew on, amongst others, post-structuralist critique.
A highlight for me is inner Asia scholar Victor Mair's refreshing insights in his unorthodox hypothesis that the North(-Western) peoples of the steppes played a disproportionately significant role on the formation of what we usually call "Chinese" dynastic states (their naturalisation as "Chinese" states are results of the works of late Qing and Republican intellectuals).
Editorially, it is wise to juxtapose the experience of the two young East Asian nations and read one in the context of the other; I would have done so if I had the luxury of more reading time.