With attention-grabbing exercises and subtle humor, the playful look-and-search books in this series are designed to entertain preschoolers while developing language skills. The books use illustrations with some animals that look or act different than all the others, or “odd ones out,” to teach early learning concepts like positions and opposites. In this tale of opposites, funny animal characters perform various actions that reveal their differences, but they all get together in the end for a party.