Why Zebras Don't Get Ulcers, Third Edition by Robert M. Sapolsky. Our suggested reading list includes several choices on learning to read dog body language, including learning to read signs of stress in your dog. While this book is not about dogs, it does provide some fascinating information about how stress affects all of us. While it’s written about humans, much of it applies to all animals. If you want to gain a better understanding of the effects of stress on humans, dogs or both, I highly recommend this book. While there is some technical discussion in it, most of it is very easy to read.