Understanding the PowerPoint Window
The Toolbars
On the bottom left side of the PowerPoint window is the View toolbar, which contains three buttons that change the way you view a slide presentation.
In Normal View 
(the first button on the left), clicking the Slide Sorter View button 
changes the view to miniature images (thumbnails) of all the slides at once so you can reorder the slides or set special features for a slide show.
To present a slide show, click the Slide Show button 
. When viewing a presentation in Slide Show View, press the spacebar to move to the next slide. You can also press the → key or click the left mouse button to advance to the next slide. To start the slide show on a different slide, click the desired slide in the Slides tab or use the Slide Pane scroll bar to move to the desired slide and then start the slide show.
Another method for jumping from one slide to any other slide in the presentation during the slide show is to right-click anywhere in the screen, point to Go, and then click Slide Navigator. The Slide Navigator is a dialog box that displays a list of all the slides by title. Click a title and click the Go To button to go to that slide.
The PowerPoint Tabs
The left side of the PowerPoint window has two tabs, the Outline tab and the Slides tab. The Outline tab shows an outline of your presentation, including the titles and text of each slide. The Slides tab shows a column of numbered slide thumbnails so you can see a visual representation of several slides at once. Also, the Slides tab lets you jump quickly to another slide by clicking the desired slide.
The PowerPoint Panes
In Normal View, the PowerPoint window contains not only the two tabs, but also up to three panes; the Slide Pane, the Notes Pane, and the Task Pane . The Slide Pane shows the current slide as it will look during your slide show. You can use either the Slide Pane or the Outline tab to add or edit text, but you must use the Slide Pane to add or edit graphics and to change a slide's design and animations.
The Notes Pane (below the Slide Pane) contains any notes (also called speaker notes) that you might prepare on each slide—it might contain points to cover or phrases to say during the presentation. The Task Pane on the right side of the window allows you to open existing presentations, to create new ones from scratch, to use Design Templates, existing presentations, or the AutoContent Wizard.