Quirky egg-shaped creatures known as the Hueys explore the concept of opposites.

Labeled illustrations of a cat in various situations introduce basic Spanish words that are opposites, including the words for "up" and "down," "open" and "shut," and "fast" and "slow."

An introduction to antonyms.

Two children in a day of play experience such opposites as inside and outside, hiding and seeking, and low and high.

Sam the bunny rabbit introduces such pairs of opposites as dirty/clean, high/low, whole/broken and angry/calm.

A series of photographs depicting opposites.

An illustrated series of questions and answers about up and down, in and out, and hot and cool.

Illustrations of cats along with rhyming couplets about them require the reader to fill in words demonstrating opposites, like tall and short, nice and mean, young and old.

Sulley and Mike introduce young readers to the concept of opposites.