When a lazy bird hatching an egg wants a vacation, she asks Horton, the elephant, to sit on her egg--which he does through all sorts of hazards until he is rewarded for doing what he said he would.

A city of Whos on a speck of dust are threatened with destruction until the smallest Who of all helps convince Horton's friends that Whos really exist.

"Piggie really likes slop. She likes it so much, she wants Gerald to try some! But can Gerald find the courage to do it? Or will the smell alone be too much to handle?"-- Provided by publisher.

Piggie ruins a perfectly good day by telling Gerald the elephant that she is going, sending him into a panic.

When Piggie plays her new trumpet for Gerald, the elephant decides he must be honest in his response.

When Gerald the Elephant is sad, Piggie is determined cheer him up, but finds after many tries that it only takes the simplest thing to change Gerald's mood.

Illustrations and easy-to-read text introduce such basic concepts as adjectives, adverbs, daytime, and nighttime as they follow five elephants marching from dawn to dusk.

"Piggie is determined to thank everyone she knows, but Gerald thinks she will forget someone important"-- Provided by publisher.

Gerald the elephant tells his best friend Piggie a long, crazy story about how he broke his trunk.

When Elephant accidentally breaks Piggie's new toy, they both experience intense feelings before coming to realize how important their friendship is.