Your body is like a big machine that is always working. Even when you are asleep your heat is beating, your lungs are breathing and your brain is working. Food is the fuel which keeps all these things going. Without it you would slwo dwon and eventually grind to a halt. The simple text and detailed illustrations combine to answer the question of each title in clear, step-by-step stages. Young children who are just beginning to read will enjoy sharing these books with an adult, while more confident readers will have fun discovering for themselves.