Machines are part of our everyday lives. However, some of these machines are larger than others; they're extra large. What are these machines and what jobs do they help people do? Cherry pickers help lift people to high places so people can do things like washing windows, trimming huge trees, and repairing power lines. Fire trucks help firefighters get to fires quickly and safely to conquer a raging fire. Without these extra-large machines, our world would be a very different place. This set introduces readers to extra-large machines and explores the tasks they help people accomplish. Features include: Engaging, full-color photographs give context to the narratives. Text and photographs depict community helpers hard at work alongside huge machines. Includes STEM topics to foster critical thinking and problem solving.