Trees and forests are already familiar to the youngest ones from their everyday world, and they are curious to learn more about the forest as a habitat for numerous plant and animal species. With the BOOKii audio pen, they have the opportunity to listen to age-appropriate texts read aloud repeatedly. Pictures and objects, even those hidden under flaps, can be tapped with the BOOKii to make them speak. A fun game and a well-known children's song provide the necessary dose of entertainment.