Harry Potter is a series of seven fantasy novels written by British writer JK Rowling. The novel chronicles the life guides of young people, Harry Potter and his friends Hermione and Ron Weasley, both students of Hogwarts School of Witchcraft and Wizardry. The main content of the story is Harry's struggle with Lord Voldemort. Voldemort is a dark wizard who wants to become immortal. He overthrew the wizarding leadership called the Ministry of Magic and conquered all wizards and Muggles.

Since the first novel "Harry Potter and the Stone of Philosophy" was released on June 26, 1997, these books have gained great popularity, positive reviews and commercial success worldwide. They attract a large number of adults and young readers, and are generally regarded as the cornerstone of modern young adult literature. As of February 2018, these books have sold more than 500 million copies worldwide, making them the best-selling book series in history and have been translated into 80 languages. The last four books set a record of the fastest-selling books in history, and the last book sold approximately 11 million copies in the United States within 24 hours of its release.

The series was originally published in English by two major publishers, Bloomsbury in the United Kingdom and Scholastic Press in the United States. The script "Harry Potter and the Cursed Child" is adapted from a story co-written by Rowling. It premiered at the Palace Theatre in London on July 30, 2016. The script was published by Little Brown. The original seven books were adapted by Warner Bros. Pictures into an eight-part movie series of the same name, which is the third highest grossing movie series in history as of February 2020. In 2016, the total value of the franchise of "Harry Potter" was estimated at $25 billion, making Harry Potter one of the highest-paid media franchises in history.

The world of "Harry Potter" covers many genres, including fantasy, drama, adulthood, and British school stories, explores many themes, and contains many cultural meanings . And reference. According to Rowling, the subject is death. Other major themes in the series include prejudice, corruption and madness.

The success of books and movies allowed Harry Potter's franchise to be expanded, resulting in many derivative works; a touring exhibition for the first time in Chicago in 2009; a studio tour in London in 2012; JK Luo Lin updated the series on her digital platform and provided new information and insights, as well as the five-part series of spin-off movies released in November 2016, including many new developments such as "Fantastic Beasts" and "Where to Find Them" . Recently, theme attractions have been established in Universal Parks and resort amusement parks around the world, collectively referred to as "The Wizarding World of Harry Potter."