<p>I just have a question about supplemental rec letters. Some colleges give specific instructions about how to send them, but most don't but will still accept them. I have one from the professor that I researched under and want to send it to colleges. Could my professor directly send it himself (with the letterhead and everything) directly to the admission offices? If so, how should he label it so they know it's me. If it's necessary for me to send it myself, do I just attach it in the additional information section in the commonapp?</p>