Using Fonts
Professional designers recommend you stick with one font for titles and another for textbetter yet, use the same font for both. Using too many fonts detracts from a presentation.
To adjust any font effects, select some text, right-click, and choose Font from the shortcut menu. All standard effects are available in the Font dialog box: color, bold, italic, bold italic, underline, shadow, emboss, and superscript/subscript. You can also adjust the elevation of superscripts and subscripts in the Offset box.
If you're planning to deliver your presentation on a large screen, avoid italicized fonts, which often end up looking like wavy blobs. You can use underline instead, to emphasize a word or phrase, but underlining is traditionally reserved as a substitute for italic. If you absolutely must emphasize a word, bold is probably your best choice.