It seems like a self-help book, but also a bit humorous.

The cover of Hanger Management is a little silly. You have a cute little apple with the angry emoji face sketched on it. I guess you could even call it the "hangry" emoji face. I think it's a good representation of the sneak peek that I read, because it was informative, but it was also done in a lighter humorous way. In the introduction and the first chapter we are given examples of why people get hangry and what aspects of their life/mood that hanger can affect. I think if your hanger is impacting your life negatively, then this could help you figure out ways to stop that from happening. I'm not sure if this is something that I personally would pick up, but I may recommend it to a friend if they were looking for something along these lines.