What a dissapointment!
I'm afraid this book waffles around the subject, 80% of the content being about generalised communication with all animals, with the remaining 20% dog related matter all very much long established dog sense, with no surprises.
Although I never expected to end up as Doctor Dolittle, there was nothing in this book that futhered my understanding of dog behavior or "language"
A case of barking up the wrong tree (sorry)