introduction

design elements

design principles

typography

technical
matters

color
   qualities
   relationships    contrast
   color use
line
   contour
   quality
shape
texture
perspective
   one point
   two point
   three point atmospheric
space

Line Quality
The use of line is a way of communicating, a way of telling a story. Just like in story telling, it's not just what you say but how you say it. The quality of a line is like the voice intonation a person uses to emphasis elements of a story.

Line quality describes the appearance of a line and does not include its direction. This includes whether a line is thick, thin, light, dark, broken, solid or tapered. By varying a line's quality, direction and its repetition, we are provided with enough visual information to interpret them as a more complex object.