From the country to the city, winter to summer, Hard Working Wheels always help out. These vehicles move across the land and through the cities working with the people who run them to perform important jobs for us all.

Feel the excitement, hear the sounds, and watch as the hard working wheels that keep us safe go into action. Catch the flash of a well-polished fire truck as firefighters work together to douse a roaring blaze. Hear an ambulance screaming by on its way to a rescue. Watch a police car glide by on a city street, patrolling our neighborhoods.

In the country, farmers plow their fields with heavy tractors and careful school buses carry their small passengers to important drop-offs.

On a construction site, workers drive bulldozers, shifting rubble, while backhoes dig deeply into the ground.

This second book in the "Mighty Wheels" series explores vehicles that have strong steel arms stretching to the sky or hoses that pump water or big bellies to carry books and food. Whatever they are doing, you can be sure that hard working wheels are helping out, making our lives a whole lot easier. Like "Load 'Em Up Trucks," "Hard Working Wheels" is written with simple, rhythmic text and clearly detailed, colorful pictures.

This book is aimed at children in primary school.

This book was published 2000 by Pearson Education (US) .

Nora Hilb is the award-winning illustrator of dozens of children's books in her native Argentina and around the world. She previously worked with Debora Pearson on "Animachines. " Chum McLeod has illustrated books for several publishers, including the popular "Henry and the Cow Problem" (1992) for Annick Press. Chum lives in Barrie, Ontario.