Font size for headings are min. 32
Font size for texts are min. 24
Fonts should be sans serif (ex. Arial, Verdana and Helvetica) and clearly legible)
Avoid writing whole words or sentences in capitals, italics or underlined
Use contrast, e.g. dark text (black, blue, green) on a light background (white)
Avoid negative text (light text on a dark background), as it can be difficult to read if the lines are too thin
Avoid text on patterned backgrounds, images or graphics
Graphics and images should take up at least half of the presentation slide