The book's so imformative and I checked in the back and a lot of the photos are by Mark which was brilliant. He's such a great photographer. You see him photograph everything in his episodes.
The book's got great colour photographs, and the layout is so easy to follow. It's good for quick reference and you can really easily find what you're looking for.
Tim Halliday has done a great job with the amphibians section too.

They are both so good at what they do and know what they are talking about that both of them doing a book together is perfect.

I'd definitely recommend it. If you haven't got then go get it because you haven't lived until you've read this book!