However, when you write an essay with only your instructor in mind, you might not say as much as you should or say it as clearly as you should, because you assume that the person grading it knows more...However, when you write an essay with only your instructor in mind, you might not say as much as you should or say it as clearly as you should, because you assume that the person grading it knows more than you do and will fill in the gaps. The assignment may specify an audience for your paper; sometimes the instructor will ask you to imagine that you are writing to your congressperson, for a professional journal, to a group of specialists in a particular field, or for a group of your peers.