Play peek-a-boo on the farm with First Baby Days: Moo Peek-a-Boo! Introduce your baby to a cow, hen, horse, and more in First Baby Days: Moo Peekaboo! Babies will love playing peekaboo with the friendly farm animals hiding behind the flaps. Each page includes giant flaps with peek-through holes that hint at the hiding animal. This book is the perfect introduction to the farm while developing coordination.