The Slide Sorter view in PowerPoint 2010 is a view that displays all the slides in your presentation in horizontally sequenced thumbnails. It is helpful if you need to reorganize your slides, as you can click and drag your slides to a new location, or add sections to organize your slides into meaningful groups. In Slide Sorter view, all the presentation slides appear as thumbnails, and you can select a slide by clicking on its thumbnail. You can also use Slide Sorter view to reorganize, insert, delete, and copy the presentation slides. Additionally, Slide Sorter view shows the presentations visual flow, and you can add and preview slide transition animation here. This view is useful for confirming that you have all the needed slides and that none have been deleted.