If you live in the US, address the letter to her US publisher as follows: J. K. Rowling c/o Arthur A Levine Books 557 Broadway New York, NY 10012 If you live in the UK, address the letter to her UK publisher as follows: J. K. Rowling c/o Bloomsbury Publishing PLC 50 Bedford Square London WC1B 3DP UK If you live in a country other than the US or the UK, address your letter to whichever address is cheaper to mail to.
Handwriting your letter will also stand out, as most letters are typed. Just make sure you write very clearly and legibly if you choose to handwrite.
Mention a few specific parts or details in Harry Potter that you liked in particular and explain why.
