Animals can help people in many different ways, some of them pretty amazing. From hearing dogs and guide horses to trained monkeys and parrots, this book explores the world of animal helpers. There are animals that help their blind or deaf owners to be more independent and keep them safe. Other service animals are specially trained to help people who suffer from diseases or mental health problems. With full-colour photographs, illustrations and boxes containing key items of information, each volume of Working Animals provides an attractive yet informative guide to how animals and humans work together.