Who wrote the series of Harry Potter?

The series of Harry Potter is based on eponymous by J.K. Rowling. The Harry Potter book was published in 1997. This book has been translated into 80 languages, and sold more than 500 million copies. Is is the best series book in History. She wrote the critical and popular Harry Potter series. The idea for the book came to his mind while travelling on a train from Manchester to London in 1990.