The book series that features a character named Harry Potter is the "Harry Potter" series, written by British author J.K. Rowling. It follows the journey of a young wizard, Harry, as he discovers his magical heritage and navigates the challenges of growing up, friendship, and battling the dark wizard Voldemort. The series consists of seven books, starting with "Harry Potter and the Sorcerer's Stone" (or "Philosopher's Stone" in the UK) and concluding with "Harry Potter and the Deathly Hallows." It has gained immense popularity across the globe, leading to films, merchandise, and a significant impact on pop culture.