The Usborne Book of Diggers and Cranes

This is a great book for younger children who have an interest in construction equipment. The pictures are large and colorful, and there are enough details to make the information interesting without being overwhelming. Each page has one large diagram of the featured piece of equipment, with smaller drawings around the edges. For example, a two-page spread shows a picture of a trolley tower crane and its parts. A sidebar follows the steps needed to actually put the crane together at the site. Another side picture shows a goose neck crane and how it is different than the trolley crane. A little boxed picture shows how the Romans built the first cranes. My sons would pore over this book when they were small. They had all the facts memorized, and have kept the books as a reminder of the fun they had reading it when they were small.