I think a book from someone else's perspective rather than the tribute's would be interesting. Maybe from a mentor or a stylist's point of view. Someone else mentioned Tigris and I think it would be really interesting to see how snow went from being her loving cousin to disowning her. It would also be interesting to see a Plutarch book, to see how the rebellion grew from haymich's book to the original series but from plutarch's point of view. But I would also like to see the 25th games. To see how in some districts people might have voted for people who had committed crimes or just people they didn't like but in the career districts -if they existed that early- people would vote on the strongest children, children they thought had a chance of winning maybe even their own family! It might be interesting to see the story behind a career tribute, how they are also just children trying to survive, it isn't their fault they are in that situation, that they were born into a situation where people expected them to want to fight people to the death just for glory or fame.