State the thesis in the last sentence of the introduction.
She has a master's in journalism from the University of Arkansas at Little Rock.
Her work has been published at Said It.org, Arkansas Times, Aging Arkansas and Arkansas Business.
These aims can be given more or less emphasis depending on the length and type of essay.
In a very short essay (less than 1000 words), for example, there is not much room to give a full and detailed context or structure. Essays are usually written for an intelligent but uninformed audience, so begin with some context: the background of the topic, the topic scope, and any essential definitions.