Harry Potter is a series of seven fantasy novels written by British author J.K. Rowling. The novels chronicle the lives of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley, all of whom are students at Hogwarts School of Witchcraft and Wizardry. The main story arc concerns Harrys conflict with Lord Voldemort, a dark wizard who intends to become immortal, overthrow the wizard governing body known as the Ministry of Magic, and subjugate all wizards and Muggles (non-magical people). The series explores numerous themes and includes many cultural meanings and references, with the main theme being death according to Rowling.

In the first book, Harry Potter and the Philosophers Stone, Harry lives in a cupboard under the stairs in the house of the Dursleys, his aunt, uncle, and cousin, who all treat him poorly. At the age of 11, Harry discovers that he is a wizard and meets a half-giant named Hagrid who invites him to attend the Hogwarts School of Witchcraft and Wizardry. Throughout the series, Harry and his friends face various challenges and obstacles, including battling Voldemort and his followers.

The Harry Potter series proved incredibly popular with both children and adults worldwide, with all the books being bestsellers, available in more than 200 countries and some 60 languages. The phenomenon introduced new terms into the common lexicon, such as a new definition for the word "muggle," a person who possesses no magical powers. The series has been adapted into eight films, with Daniel Radcliffe portraying Harry Potter in all of them).