While I think the subtitle is a bit misleading, this collection of essays offers its reader many valuable insights into the social history of the GDR and into the dialectic of the SED's justifications and defenses. Given the "everyday" of the title, however, I was surprised that the book spent so much time telling me about what the state said about itself; I assumed I'd be getting a 'day-to-day' view of citizens' life in the GDR. And there is some of this in the book, which I found fascinating.
I am much less prepared to grapple with the book's success regarding its main theme: the modernity, or lack thereof, of the GDR. I can at least say that each essay does approach the theme from a different angle and attitude (though they all seem in accordance, more or less, on the GDR's modernity).
The final essay, on museums and re-presentation, will be the most helpful in my attempt to assess the historical accuracy of the children's book A Night Divided, especially as its author (Nielsen) used a museum in the US as her main source.