When you work in normal view on the Slides tab, thumbnail-sized images of your slides appear. You can increase or decrease the size of these slide thumbnails by doing the following:

1. In normal view, click the Slides tab.
2. Click to select a slide thumbnail. Clicking one thumbnail changes the size of all.
3. To change the size of the slide thumbnails, on the Standard toolbar, click the Zoom arrow , and then click the size that you want.