As an academic writer, a student for that matter who is seeking to complete a graduate degree then writing in a mature nature that shows your level of education is important. The writer is expected to provide an analytical overview of the chosen literature which will be published on your topic. If the audience knows less about the subject matter, then it should be more instructional. In most cases, the student-teacher scenario, the audience knows more than you do. In that case, the aim is to demonstrate familiarity with the topic and above all understanding.