Data Visualization in Environmental Public Health: From Data to Insight
Using Unclear or Incomplete Titles, Labels, or Legends
What’s Wrong with This Visual? The chart compares the percentage of food establishments meeting inspection standards across different jurisdictions, but the titles and labels do not provide enough information for the viewer to interpret what is being shown. • The jurisdictions are labeled as “A,” “B,” “C,” “D,” and “E” rather than with jurisdiction names that would convey meaning to the audience. • The x-axis title does not indicate what type of jurisdiction is being shown (e.g., cities, counties). • The y-axis does not have a title. • The chart does not define what “meeting inspection standards” means.
How to Make It Better Add or edit labels, titles, and other descriptive text to help the viewer determine what is being measured and how to interpret the results. • Use descriptive labels on the x-axis, such as the names of cities or counties. • Use a more descriptive title for the x-axis and add a title for the y-axis. • Include an annotation describing how meeting inspection standards is defined in this chart.
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