Title: Big machines
Description: "In Big Machines find out about the largest machines ever made, from giant excavators, bulldozers and tunnelling machines, to monster ships, trucks and planes. Discover the gigantic jobs big machines do and how they work. You can learn about the biggest trains, tractors, diggers, cranes and much more to become a real expert!" From back cover).
Subjects: Juvenile literature, Machinery, Machinery, juvenile literature