It tells a story, usually from the experiences and points of view of the writer.

This essay aims to share a certain understanding about an idea.

It is the assertion of the writer or the speaker about a certain topic.

This is a rhetorical appeal where the "rhetor" is perceived by the audience as credible or not.

It is a way of convincing or persuading the audience by evoking sympathy and other feelings such as sadness, pity, envy and indignation.

This appeal is the use of logical arguments.