To add a diagram, choose one of the five diagram styles in the Diagram Gallery and click OK. If you find that the diagram type doesn't suit your needs, you can always change it later.
Can't find the right diagram? See the “Troubleshooting” section near the end of this chapter.
Remember that diagrams are only one way to visually present information in PowerPoint. You can also create flowcharts and other illustrations, for example, to convey similar information using PowerPoint's AutoShape functionality.
PowerPoint inserts the diagram in your presentation ...