<p>Does anyone here know exactly how UPenn art supplement works? </p>
<p>One of my concern is that, in the commonapp website, UPenn (and many other schools) art supplement page, you're required to upload a teacher's/art instructor's recommendation letter. But it seems that you'll have to upload the letter on your own, through your personal commonapp account. What if the teacher does not want to show you the letter and prefers to submit it on their own (like those regular commonapp recs) ?</p>