Learn all about the characteristics of farm machines in this eight-book set. Through simple text and vibrant images to aid comprehension, early readers will be introduced to crop sprayers, cultivators, harvesters, hay balers, plows, seed drills, swathers, and tractors. Each book features audio, comprehension questions, educational front/back matter, full-color photographs, glossary of key words, note to parents and educators, and sight words. Downloadable Teacher Notes available.