Not much new was revealed in this, I think mostly because it's not a new book anymore and most of Diana's life has been thrown out into the public, especially with the recent wedding of William.
Nothing new really, telling the truth I was disappointed. Well, it is reader-friendly, it has nice pictures and easy-to-read construction. But it doesn't give any new perspective or more comprehensive insight into what, why and how happened. All of the things and facts written in this book are know for years. It seems that Princess Diana is a kind-of-lucrative-theme-to-write-a-book-about. It's true that it's we'll written for younger adults but I don't think that it is worth to lose your time on this very book. Just omit it and pick another one.