18 months & up. Introduce your children to these classic rhymes with this wonderful set of Classic Rhythms and Rhymes Board Books. Sharing rhymes helps babies to begin to understand the natural patterns of speech. Your children will love singing and dancing along to these popular nursery rhymes with their friends or family. This set of board books promotes literacy, imagination, and early vocabulary skills. Each book contains thick pages that are easy for smaller hands to turn. Set of 8.