If necessary, write out explanations on graphic itself. The number of dimensions depicted in the graph should not exceed the number of dimensions in the data. Graphics should not quote data out of context. Devote as much ink as possible to relevant data but avoid or minimize ink devoted to non-data items. Friendly Graphs Unfriendly Graphs Words spelled out fully.
Words run from right to left.
Words run vertically. Messages to explain data. Elaborate, encoded shadings. No legend required. Labels placed on the graphic itself.