The Numbers Early Literacy Sliding Book is designed to be one of the first books that your young child can read. Our new Early Literacy Sliding Books are designed to teach children literacy skills including learning to read individual words, phrases, sentences, and books as well as introducing phonics and mathematical skills. For babies, toddlers, and young children ages 3 months to 7 years.The primary purpose of this book is to help your child learn more about numbers. The Numbers Early Literacy Sliding Book illustrates numbers 0 through 10 and illustrates the number 50. Unlike the other Early Literacy Sliding Books, this book does not have sentences on the sliding tabs for infant perception reasons (so that the numbers shown are clearer). Numbers are represented using animals, which allows your child to learn additional information about animal categories.These books are designed to help young children understand, say, and read words.