Nelly is a delightful mouse and Caesar is a funny frog, and in this charmingly illustrated hardboard book they teach toddlers about the five senses. They mold and shape clay to sense how it feels. They sense the wetness of water, the brisk cold of snow, and the prickly feel of a cactus plant. They listen to sounds of many kinds, smell the sweet scent of perfume and the aromas of appetizing foods, taste things they like to eat, and learn to use all of their senses. The book's sturdy board format with rounded corners for safety is just right for very young children.