LearningCurve can help you review.

CHAPTER 9

The search for supporting material—for the examples, facts and statistics, opinions, stories, and testimony described in Chapter 8—can be one of the most enjoyable parts of putting together a speech. It is at this stage that you can delve into your subject, sift through sources, and select relevant and audience-centered material that supports your speech points. Classical rhetoricians termed this process of discovery invention (see Chapter 1). Rather than simply gathering information, invention involves creating valid arguments from evidence and choosing from among the many different types of evidence available those materials that are most likely to lead listeners to accept the speaker’s point of view.