Essays are really the heart of any M.B.A. application. Why? Because other than conducting an interview, the essays are your primary means of "speaking" directly to the M.B.A. admissions committee.

During my time as dean of admissions at University of Chicago Booth School of Business, I read thousands of M.B.A. application essays. Based on that experience, here are a few pointers to keep in mind as you compose your business school essay:

1. Set the right tone: How you communicate is often more important than what you communicate. In other words, your tone needs to be positive but not pompous; conversational but not colloquial; thoughtful but not trivial. Resist the temptation to use slang or sound like you are having drinks with your friends. Remember, you are applying to business school. Therefore, it is a professional conversation, an "interview on paper." Pretend you are sitting in front of the M.B.A. admissions committee members and speaking to them. When commenting about yourself, keep it factual but not self aggrandizing. It should not sound as though you are congratulating yourself, or suggesting that you are superior to other applicants. When discussing your accomplishments, it is always wise to start by saying something like: "It was my privilege to..." or "I consider it an honor to have..." or "It was very exciting and yet humbling when I..." Be thoughtful in your comments. Show that you spent time working on your essays—that you really mean business.