Preschool animal picture books are beneficial because the preschoolers can learn by association. You can simply point to the different animals and say what the animals are. When kids first learn they learn everything by association and other people. If you point at the picture of the lion and tell the child several times what it is they will learn better than if they did not know what a lion looked like. Picture books are an easy way to teach preschoolers and get them ready to learn more.