In other words, this type of literature is known as argumentation. Scientific publications, journals, periodicals, newspaper pieces, academic speeches or lectures, research reports, and so on all contain hortatory exposition material. Hortatory expositions are popular among scientific enthusiasts, professors, and the well-educated. Hortatory exposition is used to encourage others to follow a course of action. It can be as simple as telling someone "go jump off a cliff" or as complex as developing a strategy for defeating an enemy nation in war. The purpose of hortatory exposition is to change minds or behaviors by using logical arguments and examples. Here are some common forms of hortatory exposition: Analogy: A comparison between two things that shows their similarity or difference. For example, "The sun rises every day. Therefore, it is reasonable to believe that Jesus Christ will return daily." Analogy is often used by teachers to explain concepts that may not be clear to their students. For example, a teacher might use an analogy when trying to explain why God would allow evil things to happen. The student understands that something similar to the morning sun exists even though the night doesn't, so God could also cause evil things to happen during the night. Definition: A definition is a brief explanation of what something is. Definitions are useful because they provide a simple way for people to understand complicated ideas.