Font size is as relevant to good supporting slides as is the choice of typeface. Fonts which are too small cannot be read, while fonts which are too large will annoy the audience.

Table 1 gives some recommended font sizes in points for presentation slides. The unit of point is used to describe the size of the font based on the slide being printed out on an 8½"×11" page.

Table 1. Recommended font sizes.

Slides	Component	Font Size
Title Slide	Title	36-40 pt
	Sub-Title	12-24 pt
Other Slides	Slide Titles	32 pt
	Main Points	24 pt
	Secondary Points	20 pt
	Tertiary Points	18 pt

Using an appropriately sized font has one significant advantage for the speaker: it restricts his or her ability to put too much information on each slide. Consider, for example, Figure 1. This slide contains

Figure 1. A slide displaying inappropriate font sizes and their consequences.