Harry Potter is a world success! It is a series of fantasy novels written by J.K Rowling. The Saga centers on the adventures of the young wizard Harry Potter and his best friends Ron Weasly and Hermione Granger, students of the Hogarth school of witchcraft and wizardry, and it is mainly set in the imaginary wizarding world. The narrative time mainly follows the clash between the young Harry and the dark wizard, Lord Voldemort, eager to conquer the magical world and achieve immortality. The series published between 1997 and 2007 received an important commercial and media success. Translated into eighty languages, it remains second in the history of publishing, with a total sale of 500 million copies!