PowerPoint 2013’s work area below the Ribbon continues to be tri-paned — these three panes comprise the Slides pane, the Slide area, and the Notes pane. The Slides Pane is the thin strip on the left side of the PowerPoint 2013 interface that contains thumbnails of all your slides. Long time PowerPoint users will recollect that this pane used to be twin tabbed in all older versions — other than the Slides pane, you could also access the Outline pane. The Outline pane has been removed in PowerPoint 2013 — since there’s just one pane, there are no tabs for this pane — by default you can just see the Slides pane now.
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