Yup, I've read it! It's good and informative, especially for beginners like us, Paige. I stopped reading when it got to the intermediate and advanced training parts, since I'm not there yet, but I read all around those parts.
I really liked it and his little drawings are helpful. It's in everyday language, nothing goes over your head, it's easy to understand. He also talks about the different styles of herding dogs, though he primarily trains border collies.
It's on loan to a friend of mine, but if you want to discuss any parts in particular, I can do so after I get it back.
PS Calypso, this would be a good one for you, too.
Lilly, Jack, Alex and Will