This was one of my introduction books to a natural diet and holistic way of caring for dogs. I found it very useful as an introduction and occasionally refer to it even today.
The diet was not for me (too grain-heavy and dependent on supplements) and I am definitely in the suspicious camp on Willard's Water
but I found the book an easy-to-understand and thoughtful introduction to, what was for me, a different approach to health care and nutrition.