Charts and Graphics
Data visualizations tell a story, so information hierarchy and design is vital. Make sure viewers find key points quickly and naturally. Reinforce data with declarative text and simple color combinations.
Visualizing data hierarchy
- Place dominant data in primary reading position (top left).
- Place remaining data starting from 12 o’clock and moving clockwise.
- Show a maximum of five segments, adding a table when needed.
Using color
- Pair the dominant color with the most important data.
- Secondary colors may be used to aid visual separation, but allow the primary color to dominate.
- Color helps differentiate, but so does shape. When using symbols to organize information, employ both for clarity and accessible content.
Charts and Graphics
Types of charts
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Charts
Bar
Compares the quantity of items.
- Text can be bold or light, depending on the number of items being compared.
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Charts
Column
Compares a category over equal periods of time.
- Label the x-axis with increments from zero to whatever the range is needed. The range one chooses can sometimes skew the story so be judicious and note the presentation.
- Use color to emphasize the key point—in this case, that’s the growth of the third item.
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Charts
Donut
Compares components that make a whole. It can also show one component that is part of the whole. For example, progress toward a goal.
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Charts
Line
Illustrates change over time (trend).
- It’s essential to show starting and ending values for context.
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Charts
Pie
Compares individual items often by quantity or mass.
- Other than labels and numbers, supporting text is generally unnecessary.
- Data flows clockwise from 12 o’clock, starting with the largest segment.
Visualizing data hierarchy
- Place dominant data in primary reading position (top left).
- Place remaining data starting from 12 o’clock and moving clockwise.
- Show a maximum of five segments, adding a table when needed.
Using color
- Pair the dominant color with the most important data.
- Secondary colors may be used to aid visual separation, but allow the primary color to dominate.
- Color helps differentiate, but so does shape. When using symbols to organize information, employ both for clarity and accessible content.