‘Harry Potter’ series first book marks 25 magical years

When Bloomsbury Publishing founder Nigel Newton brought home a manuscript for "Harry Potter and the Philosopher's Stone" by a then unknown J.K. Rowling, his daughter Alice described it as "possibly one of the best books an 8/9 year old could read".

Twenty-five years later, it is one of the biggest selling novels of all time after capturing the hearts and imaginations of children around the world.

"I gave it to Alice who took it upstairs... We had the chapters up to Diagon Alley at that stage," Newton told Reuters.

"She kind of floated down the stairs an hour later saying: 'Dad, this book is better than anything you've shown me'."

Sunday marks 25 years since Rowling's first book about the magical world of witches and wizards was published.

Rowling had faced rejection until Bloomsbury took her work on with an advance of 2,500 pounds. Her story went on to become a massive hit around the world, spawning a whole series of books and a huge film franchise.

"Did we know that it would sell over 500 million copies by the summer of 2022? No, but we did know that it was a great piece of writing," Newton said.

"It was children and not their parents who were the original adopters of this book. It was a complete grassroots phenomenon."

Those children would queue for hours in front of bookstores awaiting the latest instalments of Harry's adventures, which culminated with 2007's "Harry Potter and the Deathly Hallows".

For some, like Jacqueline Hulbert, now 23, it also helped them to enjoy reading.

"It was just phenomenal. It was nothing like I had tried to read before because the story was gripping enough that I wanted to keep trying to read it," Hulbert said.