Noisy Lift the Flap Trucks is a lively interactive sound book with sound buttons hidden in touches and under flaps!This interactive sound book is both entertaining and educational, with sound buttons that are triggered when flaps are lifted, so that when children lift the bulldozer they can listen to the engine's rumble, or in hidden in touches, so they can touch the tractor tire to hear it at work.Scholastic Early Learners: The Most Trusted Name in Learning!