PowerPoint 2010 is a visual application used to create presentations combining text, images, graphs, videos and more. It has a ribbon interface with tabs for tasks like Home, Insert and Design. The application window includes elements like a title bar, quick access toolbar, file tab, groups of commands, slide and notes panes, and status bar. The document provides guidance on designing effective PowerPoint presentations, such as minimizing slides, using readable font sizes, keeping text simple, adding visuals, and checking for errors.