Avoid Separate Legends and Keys
Make Grids, labeling, etc., Very Faint so that
they recede into background
Graphical Integrity
–Where’s baseline?
–What’s scale?
–What’s context?
–Watch Size
Coding: Height/width vs. area vs. volume
Using Color Effectively
–To label
–To
measure
–To represent
or imitate reality
–To enliven or
decorate