While you can link from an anchor object on a slide to almost anywhere, you will certainly want first to explore how you can link between slides in the same presentation. This is simple to do, and also very useful because it lets you use your presentation in a non-linear way and you are not limited to viewing your slides in sequential order.
To learn more, click a link from the tutorials listed below.
Microsoft Windows
Linking Between Slides in PowerPoint 2013
Tutorial Code: 15 02 01
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Next: 15 02 02 Linking to Another Presentation in PowerPoint