A caption, axes and scales, symbols, and a data field should always be included in graphs. Plotting symbols must be clear, readable, and create strong contrast between the foreground and background figures. They should not overlap or cover up other elements on the page. The data field should include a title for the point being made by the graph, along with any relevant labels for the axes. The type of graph should be stated in the caption. Bar charts, pie charts, line graphs, and scatter plots are all acceptable. Avoid using more than one type of graph in one picture; it can become confusing for readers. Chart legends are explanatory notes that appear outside the chart area (but within the graphic itself), providing information about what is shown in the image. They can help readers understand the relationship between different parts of the picture. Labels should not repeat information contained in the legend unless this helps to clarify things for readers. Graphs are useful tools for presenting data, but they can also be used to make interesting pictures. Keep an eye out for ways you can use graphs as illustrations in your writing, and don't be afraid to experiment!