Parr (Big and Little, not reviewed, etc.) teaches an important social lesson that all children need early in their development. Differences are observed and encouraged in this wonderful celebration of the vast distinctions that make each of us individuals. Every page displays a person or animal with characteristics or feelings that are unique, making each one extra special. The describing text for each drawing begins with, "It's okay to . . ." and can act as a springboard for an exercise in which children think of and name additional differences. Solid primary colors create the background, and kid-friendly hand drawings help children relate on their own level. Of course, the exaggeration of some of the drawings is just plain fun. The theme encourages acceptance of oneself and others, and boosts self-esteem. (Picture book. 3-5)