An exposition is a text that presents one side of an issue to persuade the reader. There are two main types - analytical exposition, which uses arguments and evidence, and hortatory exposition, which urges the reader to a specific action. An exposition typically includes an introduction outlining the author's viewpoint, a series of arguments supporting that viewpoint, and a conclusion reinforcing the viewpoint. Analytical expositions specifically use points and elaboration to develop arguments and reiterate the thesis. Features like relational processes, emotive language, and modal verbs are employed to strengthen persuasiveness.