On the Go! Books are sturdy mini-books that introduce preschool children to vehicles of different kinds. The books are constructed of extra-thick board pages and have vivid color illustrations on every two-page spread. The simply-told stories are for Mom or Dad to read aloud while children delight in the bright and friendly pictures. In this story, Tiny the Train is smaller than the red, blue, yellow, and green trains. But he"s the favorite train of all the animals.