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 protect his friends and the wizarding world. The books explore themes of friendship, bravery, and the struggle between good and evil. Alongside Harry, key characters include Hermione Granger and Ron Weasley, who support him throughout his adventures. The series has been adapted into successful films and has gained a massive global fanbase.