urgent question about envelopes

<p>can somebody please explain to me how the mailing labels exactly work?
at my school, the counselors just put everything (teacher recomendations, transcript, counselor evaluation, etc) in one big envelope and then you mail that.
where do you put the stanford mailing labels then?
do you have to send each recommendation, ur transcript, etc in a envelope by itself?</p>

<p>thanks</p>