How many books has JK Rowling sold?

Related questions

1. What books has JK Rowling published?
2. Did JK Rowling wrote fantastic beasts before Harry Potter?
3. Is JK Rowling writing Fantastic Beasts movies?
4. When did JK Rowling become a billionaire?
5. How did Newt Scamander die?
6. What age did Grindelwald die?
7. Is JK Rowling writing more fantastic beasts books?
8. What books other than Harry Potter did JK Rowling write?
9. What does Harry Potter eat?
10. How many books has JK Rowling had published?

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11. #novel
12. #copies
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15. #having
16. #rowling
17. #series