The repertoire of various views available in PowerPoint 365 for Windows ranges from some views that you use all the time to others that you may have never bothered to explore. The latter category probably includes Reading view.
Reading view is similar to Slide Show view in some ways because, in both views, the slide is shown in full-screen mode. However, in Reading view, you also see the PowerPoint title bar and the Status Bar at the top and bottom of the interface respectively, as you can see in Figure 1. Additionally, you can also view the Windows taskbar at the bottom of the screen (not shown in Figure 1).
Figure 1: Reading view in PowerPoint 365 for Windows
Reading view helps you in quickly navigating through slides, and also allows easy access to the Windows taskbar at the same time to switch to other available open programs or windows. Also, Reading view is great for presentation designers who want to quickly look at their slides in full-screen mode and also be in sync with other applications running at the same time. Finally, if you have multiple displays, you can open two or more presentations in Reading view and compare slides without being distracted by the rest of the PowerPoint interface.
To access Reading view, select the View tab on the Ribbon, and click the Reading View button (highlighted in red within Figure 2).
Figure 2: Reading View button
Alternatively, you can also access Reading view from the View buttons on the right side of the Status Bar. Just click the third button (highlighted in red within Figure 3).
Figure 3: Reading view button on the Status bar
If you want to edit the presentation, you can always switch from Reading view to one of the other views using the view buttons that you can see towards right on the Status Bar. Additionally, you can press the Esc key to go back to the view you were using before you changed to Reading view.
Views: Reading View in PowerPoint (Index Page)Reading View in PowerPoint 365 for Mac
Reading View in PowerPoint 2019 for Windows
Reading View in PowerPoint 2016 for Windows
Reading View in PowerPoint 2013 for Windows
Reading View in PowerPoint 2010 for Windows
Reading View in PowerPoint Online