Reading Harry Potter makes you very smart...

Today I got an email from Amazon.com (emphasis added)

Dear Amazon.com Customer,

As someone who has purchased books by J. K. Rowling, you might like to know that "Harry Potter and the Philosopher's Stone (Ancient Greek Edition)" will be released soon. You can pre-order your copy at a savings of 30% by following the link below


I knew that reading is good for you, but I didn't know that reading Harry Potter was that good for me...