Harry Potter is a fictional story.
Fantasy . Fantasy is a subgenre of speculative fiction and is distinguished from the genres of science fiction and horror by the absence of scientific or macabre themes respectively , though these genres overlap . Harry Potter is a series of fantasy novels written by British author J. K. Rowling . The main story arc concerns Harry 's struggle against 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 , a reference term that means non-magical people . Harry James Potter is the title character and protagonist of J. K. Rowling 's Harry Potter series .