These books are brilliant my 10 year old son loves these books. Well done Joseph Delaney. The film was not good though as it was American when the books are actually set in Lancashire England which is pretty unique.
I bought this book for my mum for her birthday, as we are both huge fans of the Spook's series. I haven't given it to her yet but from what I've seen of the book it is brilliant, (I spent a couple of hours absolutely absorbed in it!), with incredible drawings and lots of information on literally every creature in the books and some that aren't.
Overall, it clarifies a lot of information in the books and is also presented very nicely - a true collectors item for any fan!
The Spooks series is great one, unique and interesting. This is a companion to the series (up to a point, it's released before the last book, so there are some things that could be added) and it contains other creatures from outside the series, making this a good buy
There are a lot of spoilers in this book if you haven't read the whole Wardstone Chronicles yet. My advise is to read it afterwards, but it made me understand a lot more of what happened during the story.