From tracking scents to pulling sleds, people train dogs to do all kinds of work. This series pairs short paragraphs of easy-to-read text with colourful photos to help readers explore these jobs and the training they require. Each book also includes a table of contents, fun facts, sidebars, comprehension questions, a glossary, an index, and a list of resources for further reading. In this book, readers explore how dogs use smell to detect many things, as well as the skills and training this work requires. AGES: 7 to 9