How Purpose and Audience Affect the Choice of Topics
Before choosing and narrowing a topic to write about, consider why you are writing and who will read what you write. Your writing purpose and audience often dictate the types of topics that are available to you.
In the workplace, purpose and audience are often defined for you. For instance, you might have to write a memo to a co-worker explaining why a decision was made or compose a letter to a client arguing why the company cannot replace a product. In either case, your purpose and audience are obvious, and your topic is equally evident. As a student, you may have to work a little harder to determine which topics are appropriate for particular purposes and audiences.
Oftentimes, the wording of your assignment sheet will offer clues as to the reasons why you are writing and the audience you are expected to address. Sometimes, when assignment sheets are unclear or when you misunderstand what is expected of you, you will need either to ask your instructor about purpose and audience or to make your own educated guess. However you arrive at the purpose and the audience of your writing, it is important to take these elements into consideration, since they help you to choose and narrow your topic appropriately.