Harry Potter is a good book and it is very popular, but it is not the best literature. It has become a commercial phenomenon, and today the movies and theme parks are more popular than the books themselves. Although it is a good story for children, it is not legitimate literature.
Harry Potter is a dynamite series of novels. However, it is not the best children's literature in the world. Authors like L. Frank Baum ("The Wizard of Oz") and Lewis Carroll ("Alice in Wonderland") are also great authors who have contributed to children's literature. Let us also not forget C.S. Lewis and his "Chronicles of Narnia" series as well. Without Lewis, there is no "Harry Potter."