First infants "coo" and then they "babble," as they learn the sounds in their family's language. Infants and their grownups will love to explore and share this sturdy, high-contrast book, which introduces 10 vowel sounds (short and long A, E, I, O, U) in a series of scenes featuring owl parents putting their baby to bed - or at least trying to. Written by a pediatrician and early literacy expert, applying scientific and educational principles in a fun, innovative, interactive way - this book is literally a hoot!