How long did JK Rowling plan Harry?

Related questions

1. Is JK Rowling writing more Harry Potter?
2. What is JK Rowling writing now?
3. Is JK Rowling going to write another book?
4. Why did JK Rowling write Harry Potter?
5. How many books sold Harry Potter?
6. What made JK Rowling famous?
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8. What is JK Rowling's most popular book?
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10. Was Harry Potter plagiarized?

Tags

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5. #seven
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7. #longhand
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10. #delayed
11. #london
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13. #travelling
14. #wrote
15. #potter
16. #notes
17. #first
18. #mostly
19. #which
20. #series
21. #paper
22. #while
23. #mountain
24. #books
25. #rowling