Description Mail trucks help deliver exciting letters and packages to our homes. Some delivery trucks are small, and some are quite large. Some travel very far in order to get the job done. Readers will learn about these special vehicles and imagine themselves in the driver's seat of a mail truck. Colorful images of different kinds of mail trucks accompany the simple and informative low-ATOS text and help readers decode unfamiliar terms, a practice that will help them hone their reading proficiency.