Graphics should serve a purpose and the appropriate type should be chosen based on that purpose. Tables and bar graphs are best for illustrating numerical information while line graphs and pie charts show relationships and relative sizes. Flowcharts and checklists depict processes through stages. Drawings, photographs and screenshots provide visual representations. Graphics need clear labels and should supplement text to show changes over time or processes through action.

2. Graphics Should Serve a Purpose

3. Choose the Appropriate Kind of Graphic Purpose Type of Graphics Best Used For Illustrating numerical information Table Bar Graph Line Graph Pie Chart Large amounts of information when there are several variables Relative values of two or more items Changes over time Relative size of parts of a whole Illustrating processes Checklist Flowchart Lists what equipment or materials to gather Stages of a process Illustrating visual and spatial characteristics Drawing Photograph Screenshot Simplified representation of objects Precise external visual What appears on a computer screen

6. Clearly Label Your Graphics

8. Use Graphics to Show Action