When Wendell doesn't clean up his room, a whole herd of pigs comes to live with him.

Describes what germs are and what they can do.

A busy backhoe loader describes all the items it hauls from a lot and all the fun it has getting dirty while doing so.

Sloppy Joe determines to do everything he can to surprise his family by becoming Neat Joe.

Fourth-grader Frankie Piccolini has a vivid imagination when it comes to cleaning his disastrously messy room, but eventually even he decides that it is just too dirty. Comic strip illustrations are interspersed throughout the text.

Harry is a white dog with black spots who loves everything . . . except baths. So one day before bath time, Harry runs away. He plays outside all day long, digging and sliding in everything from garden soil to pavement tar. By the time he returns home, Harry is so dirty he looks like a black dog with white spots. His family doesn't even recognize him!

When dirty laundry under his bed gives life to a tiny civilization that worships him, twelve-year-old Todd must protect the Toddlians from a school bully.

After playing in the garden, muddy Otter and Teddy try to avoid bath time until they see fun bubbles and a duck in the tub.

White dresses get dirty during play and Marianna May spends her summer sitting on the porch swing to stay clean, until Nursey and the rest of the staff figure out a way she can play and not worry about her dresses.

Henry McHenry is trying his best to keep clean for his class photo, but his attempts to stay spotless get his classmates messy instead.