Hotspots allow linking parts of a presentation to other slides. To create a hotspot: 1. Insert a shape like a circle on the image where the hotspot should be. 2. Add a hyperlink to the shape to link it to another slide. 3. Add a screen tip to describe what the hotspot is when the user hovers over it. 4. Add an action button to allow users to return easily to the starting "home" slide from slides with hotspots.