Before we dig in, let's start with a quick multiple-choice quiz:
Font : Text ::
A. Hat : Head
B. Coffee : Tea
C. Voice : Speech
The answer is C. The font you choose to display text is every bit as important as the voice you use to speak if you want a reader to not only understand what they are reading, but also remember it as well. The primary purpose of type is not really to be readable, but to convey information that is to be remembered. Surprisingly, readability might not always lead to the best information retention.