This is a pioneering book in veterinary medicine. The reader will be able to visualize what really is happening in a diseased heart. Through three-dimensional representation and augmented reality; every disorder can be seen, almost touching the 3D model above the book. The pathologies' changes in blood flow can be visualized, bringing the reader even closer to the pathophysiological reality. The text addresses the major points of pathophysiology and diagnostic keys for the most common diseases, and the illustrations and pictures are a bridge between the 3D models and the text. Thus, the book succeeds in joining diagnosis, particularly a test such as echocardiography, to understand the pathophysiology.

This book deals with pain in companion animals and how it affects their welfare, health and, of course, behaviour. It describes the difficulties encountered, throughout history, to finally reach the conclusion that animals and humans share the same neurophy- siological mechanisms to feel pain, and what their sensitive pathways are. It then goes deeper into the changes that pain can cause in the behaviour of dogs and cats and the tools available to the veterinary surgeon to control it. Good veterinary practice and professional ethics lead us to try to reduce pain in animals as much as possible. Having a book such as this one can help us achieve this objective.