A good PowerPoint presentation should contain little text, or, ideally, no text at all. It should basically be a visual reflection of what you say in your presentation speech. However, if you have to use text, keep in mind the tips below.
What Font are you going to choose for your presentation and what do you want to achieve with it? This might seem like an obvious question, but in fact requires some thought. Do you want a traditional Font or one that looks modern?
If you want it to be easy to read, you should use a Sans Serif Font as opposed to a Serif Font. The reason for this is that Sans Serif Fonts, such as Arial, Calibri, and Helvetica, tend to have less line width variation than Serif Fonts. Sans Serif Fonts have become the most prevalent for display of text on screens.
For captions and titles, legibility is not as important as the appearance of the font. Hence, it is more common to use Serif Fonts, although you should check that the font is flexible enough to work on different sizes.
Try not to use too great a variety of Fonts in you presentation, as it can look untidy and disjointed. Two or three fonts are more than enough. Alternative, cool or original Fonts are not what you want, however good you think they look on your computer.
The size of the chosen Font depends on several factors, such as distance from the audience to the screen and age of the audience. The general rule is that Font size should be at least 30. Starting from this, Font size may be adjusted according to particular circumstances.
Text should be placed on a complementary, contrasting background, light if the text is dark, and dark if the text is light. Complementary colors are colors that, when placed next to each other, create the strongest contrast and reinforce each other. Complementary colors are located opposite to each other on any horizontal cross-section of the color star.