Finally, the popular "Listen and Learn" books are available for the very youngest. Even 1-year-olds can dive into the exciting world of vehicles. Who is tipping sand onto the truck? Who is the police chasing? What do the ships bring across the river? The answers are hidden behind five sturdy sound sliders. Simply pull out the slider, and the answer appears and sounds. In familiar sound quality and beautifully illustrated, of course. The play effect matches the motor skills of toddlers, allowing them to explore the books all by themselves. An important aspect that enhances the fun of play. A sound playbook for children aged 12 months and up.