A slide master is the top slide in a hierarchy of slides that stores information about the theme and slide layouts of a presentation, including the background, color, fonts, effects, placeholder sizes, and positioning.
Why use slide master in PowerPoint?
Use the slide master to make global design changes and create exactly the look and layouts you need. To work on the slide master, click the VIEW tab, Slide Master. This opens SLIDE MASTER view, which contains the slide master and master layouts. The slide master is the larger thumbnail at the top in the thumbnail pane.
What is the difference between slide and slide master?
In Microsoft PowerPoint, the Slide Master is the top slide that controls all information about the theme, layout, background, color, fonts, and positioning of all slides. Using the Slide Master is an easy way to adjust the look of an existing theme or make changes to all slides in your presentation.