response: Can you believe that more than 500 million, yes 500 million copies of the books have been sold around the world?
original_response: I can't believe the books have sold more than 500 million copies.  wow
history: Harry Potter is one of the enduring books that has ever been written in the modern history. Words can describe how fascinated I am by this novel That's neat to hear, are you a fan of its author too? J. K. Rowling? I really like her. J.K. was truly imaginative and full of dream-like creativity in developing the characters. Do you know the story gist as well? Yes, its about Harry Potter and his friends and their lives. What else do you like about these novels? I really like the main story arc of the story but its been a while and I'm embarrassed I'd mess it up summarizing it for you, unless you already know it? Actually I do, isn't it about how Harry has to deal with the dark wizard Voldemort? Yeah, I really liked how J. K. managed to keep that story going even over 7 books, heck nowadays it seems writers can't even hold a 2 episode tv plot point. You seem quite knowledgeable, do you know how many books were sold?
knowledge: , the books have sold more than 500 million copies worldwide, making them the best-selling book series in history, and have been translated into seventy-three languages.