If you're new to PowerPoint and need to create a presentation in a hurry, one way to handle the situation is with predesigned themes. In this tutorial, we'll show how to access and use those themes in PowerPoint 2007.
Once you’ve opened PowerPoint, click on the Office button and choose New as shown in the screenshot below. (Click any image in this article for a larger view.)

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This will open the New Presentation window. Here, you will find a variety of options available for the creation of the new PowerPoint presentation.
To use one of the themes that comes bundled with PowerPoint 2007 or one that you have downloaded, select Installed Themes. Upon making this selection, a thumbnail of all available themes will be shown in the center panel of the window. To see a larger version of any one particular theme, click on it and a preview will appear in the rightmost panel. After you have chosen the theme you wish to use, click Create to continue.

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