This is not a novel or anything per say, it's an illustrated guide to all the characters in the Shadowhunter's universe, from all the series that Clare is planning to launch about this world - including already The Dark Artifices and The Last Hours. The book itself it's gorgeous, the illustrations are beautiful and there's a kind of character's profile for all the important characters in the Shadoworld universe - with full name, age, family, a curiosity or fact about them, favorite weapon and a flower that represents them. It's definitely worth having this baby in the shelf, especially because there are so many characters it's sometime easy to mix them up or not be able to quite picture that character while reading.