The author famous for the "Harry Potter" series is J.K. Rowling. Her groundbreaking fantasy series, beginning with "Harry Potter and the Philosopher's Stone," captivated readers worldwide and became a cultural phenomenon. Rowling's richly detailed world of witchcraft and wizardry explores themes of friendship, bravery, and the struggle between good and evil. The series has inspired numerous adaptations, including films and stage productions, and has played a significant role in revitalizing children's literature, making Rowling one of the most influential authors of contemporary times.