Barking is more than just noise. Barking is natural and almost all dogs bark. It is one of the many ways dogs communicate with each other as well as with humans. In this book, author Turid Rugaas, well known for her work on identifying and utilizing canine ''calming signals,'' turns her attention to understanding and managing barking behavior. Think of barking as your dog's language. By learning to identify what your dog is expressing when he barks, you can take steps to minimize their negative effects.