Talking about the structure of an essay the title must be precise about what you intend to argue and the subtitle must give the framing of your position.
The development of an argument must start by defining an aim explaining what you intend to defend and how you will do it.
The ‘body’ of an argument must be coherent and concise using intellectual tasks as analogy and examples or making reference to theory and also using the rhetorical question.
The reader should be in touch with your understanding of the subject and also with your position.
The conclusion of an essay should corporate the summary of the main ideas and leaving in an intelligent way is giving voice to a challenge.