Korman, Justine

Martha is happily starting a cross-country journey as a trucker delivering books. Young readers get to ride along.

Sam drives a mighty tractor trailer with a bulldozer on top to a busy construction site where workers will build a new home.

Steve and his Mighty Loader keep busy six days a week, building roads, digging ditches, and working at other jobs that need dirt moved around.

The backhoe is the truck-of-all-trucks and it's Billy favorite. At his new home, Billy makes friends by teaching his neighbors that everyone needs a backhoe.