In reference to brand communication, perhaps some theories explain brand communication better than others? Or, perhaps you could critically discuss a model/theory which shows how we are persuaded via brand communication versus a theory which discusses persuasion in general. This raises the question "how important is brand communication in advertising?"
Generally, it is up to you how you structure your essay, but those of you that get good marks for this assignment will:
* Have a clear introduction, where you signpost what is to come in the essay. * A coherent main body, where each paragraph links on from the other and where you have made good use of wider reading * Good use of literature to back up your points * No subheadings please, it's not a report * A definitive conclusion where you summarise your argument for which theor(ies) is(are) the best and worst for explaining