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.
A compilation of five works of Dr. Seuss, including "Bartholomew and the Oobleck," "If I Ran the Zoo," "The Sneetches and Other Stories," "Dr. Seuss's Sleep Book," and "Horton Hears a Who!".
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.
Horton hears a cry for help from a speck of dust and tries to protect the creatures who live on it from the other animals who think Horton has gone crazy.