I do not really see the purpose of why this is turned into a book? This could've easily be added in either one of the other books, or published only online.

This contains a small interview with the other, who explains some things, yet the questions I had hoped would be talked about weren't mentioned. There is a quiz, about which faction you would belong to, the faction manifesto of each faction and some quotes of the next book.

And while I didn't hate or dislike it or anything, I'm just not sure why exactly it is turned into a book. There wasn't really anything that caught my attention.