The Harry Potter series is a popular fantasy book series written by British author J.K. Rowling. It follows the journey of a young wizard, Harry Potter, as he discovers his magical heritage and attends Hogwarts School of Witchcraft and Wizardry. The series consists of seven books, detailing Harry's battles against the dark wizard Lord Voldemort and his quest to uncover the truth about his past. The books explore themes of friendship, bravery, and the struggle between good and evil. The series has been adapted into successful films, stage plays, and various merchandise, making it a significant part of modern pop culture.