Principles of Interface Design:
Organization & Visual Composition

An "A" with serifs circled (the little extra stroke found at the end of main vertical and horizontal strokes of some letterforms) and an "A" with out serifs

Short description: CAPS ARE LESS LEGIBLE: the form a unified block of textMixed cases are more legible: Ascenders (e.g. d) and decenders in the text (e.g. g) create variation in the text.

White text on a light cyan blue back ground in a cursive script that is impossible to read!

Text used in a tutorial