I agree with some reviewers that mentioned that this book was some kind of publicity for the others books from the authors. A lot of pages are used to promote those book, which is very disappointing. There is also the fact that this are not trivia (not question in there) but just facts, which of course you can make trivia from but... And finally, the book doesn't contain a lot of and most of them are largely know if you already have some king of knowledge on the subject. Not all bad, maybe 2,5 would be good for it, but definitely not an awesome book like I hoped for.