Improving the Learning Environment
Using Fonts: Facts About Fonts
Less is More > Facts About Fonts
Facts About Fonts–Non-Example
Using all Caps in a layout makes it hard to read. The uniformity in the height forces the eye to work harder to decode the word.
Use live text instead of text images so your content will be accessible to those who use screen readers. This is also a legal requirement (ADA 508).
Fonts with a higher x-height are harder to read.
(image from Wikipedia)
Use Italics sparingly—they are harder to read.
Try to use at least 12 point type (this varies with styles and boldness).