"With the turn of every die-cut page, see Little Green Monster's face gradually appear. Then, as the stars come out, get ready to say good night!"--P. [4] of cover.
Die-cut pages reveal the scary and mean parts of a bullybug, but just as it is about to attack some "itty-bitty baby bugs," the bullybug is chased away until it learns to behave.
Monsters of different colors explain what makes them feel glad, sad, loving, worried, silly, and angry, and fold-out masks encourage readers to talk about their feelings.
"This book uses vivid illustrations and simple rhyming text by a noted author/illustrator to introduce the concept of shapes and sizes to curious young readers as he suggests how they can view the world in a new and exciting way."--Provided by publisher.