The present book, Heart Failure in Animals: Current Concepts, is an attempt to provide comprehensive information on the structure and function of the heart, as well as the current concepts in the etiopathogenesis of heart failure. The book also covers updated diagnostic modalities, therapeutic interventions, new pharmacological agents, and dietary considerations for heart failure in dogs. The description of related syndromes, such as syncope, shock, and cardiac arrest, has expanded the scope of the book.The book includes chapters on heart failure in feline, ruminant, equine, leporine, pet avian, ferret, and human species, providing a comparative outlook and broadening the books utility and scope to include veterinary students, researchers, and specialists in veterinary medicine, as well as practitioners. This comprehensive resource equips readers to handle heart failure cases in a more effective and rational manner.