In order to get in to your desired college and get the degree program, the college/university will assess you by requesting letters of recommendation. The letter typically comes from the people whom you have interacted with in the past and should have bearing on your academic life. Choosing the right person is important in getting the best letters of recommendation. Make sure that it is someone whom you have worked with, studied with and really knows you as a person. It does not have to be said that the person should give you a glowing recommendation to increase your chances of being getting in.