Frankie, an eighteen-wheel semi-truck, invites the reader to join him on a job, introducing the work, mechanics, and terminology of trucking along the way.

Zoo animals from polar bear to walrus make their distinctive sounds for each other, while children imitate the sounds for the zookeeper.

Two children and their parents board a city bus on their way to a party.At the next stop, who should get on but a group of seals, who holler “ERRP, ERRP, ERRP” at the top of their lungs. Each time the bus stops a new kind of animal joins the passengers and adds to the din, to the children’s delight and the parents’ annoyance. But when several hissing skunks want to come aboard, even the children cry “HELP! HELP! HELP!”

LEVEL 1. After Bo and Pal, his silent new puppy, go for a walk and hear the various sounds of animals and objects around them, Pal finally speaks up.

Nibbling peacefully in the meadow, a young rabbit hears animal sounds from the nearby farm and discovers the advantages of being quiet.

A heedless little boy and his dog slam the door as they run out to complete an errand, unknowingly dislodging a red ball that bounces through the neighborhood and triggers an escalating series of mishaps.

When a rabbit begins saying "moo," it helps the other farm animals realize that they are not limited to their own language, and one by one they begin to join the others in making the noises they like best.

Quiet Rabbit enjoys listening to the night song of the other animals every evening and wishes he could join them, but no matter how hard he tries he is unable to copy their sounds.

There's nothing like a game to fill the hungry time before pizza arrives at the door. Vivian's game is like nothing before - more creatures than merely a pizza man come to play her game.

When a cow loses her moo, she searches to see if another animal in the barn has it.