I am clueless about the letterhead design. I really do not know what that is so last night I asked my husband about it. He explained to me, but I still could not get it. Today I asked my friend at work and she showed me the company envelope and white paper that having a Letterhead Design from our company. It was funny. I am always using envelope at work that having a company logo and address and I do not know about it. That was why my friend was making fun of me, I am clueless sometimes.