In the Mighty Machines series, vivid color photographs of machines at work jump off the page. Large type describes the machines, their parts and their uses. Glossaries explain essential terms, and suggested activities add to the fun. The big format and vibrant designs make the books perfect for kids to read alone or share with a friend. Tractors and their enormous wheels Plows Seed drills Field weeders and crop sprayers Vegetable harvesters Combine harvesters Straw balers The sport and fun of a tractor race!