The slide master and title master pair, zoomed in for a detailed look.
If you were to zoom in on the little pair of thumbnails that you see in master view, representing the slide master and title master, the picture on the left is what you'd see.
Though the default title text at the top of each master says the same thing, the two masters are different and affect different slides.
The slide master
The slide master is the top one of the pair; its styles apply to all your slides except title slides — which are discussed in more detail later in the lesson. The slide master's styles include background design, colors, text styles for slide titles and body text, and layout (the position of the dotted boxes that contain text and footer information).
The title master
The title master, the bottom thumbnail, contains styles that apply to title slides. The styles include background design, colors, title and subtitle text, and layout.
In a later section, there's more about the title master and its relationship to the slide master and your slides. For now, think of the slide master and title master as inextricably linked, yet designed so that you can make unique design choices for each.
Note To make changes to either master, you select the master thumbnail you want and work on that master in the main slide pane. You'll do this in the practice.