Pepper and Boo are two dogs who like to have fun. The Cat likes to have fun, too, but cat fun is very different from dog fun. Cats can have fun with a newspaper, a bottle cap, an ice cube, and some boxes. Dogs like to have fun by chasing leaves, biting sticks, and licking the grass.

That's not the only way cats and dogs are different. The Cat explains while Pepper and Boo try to find coats so they can go outside on a rainy day. With the perfect coat, cats and dogs can all have fun outside together.

Harper cleverly shifts point-of-view between the Cat and two dogs, creating laugh-out-loud moments through her text and art that younger readers will want to return to again and again.