99 DATA VIZ RULES - & WHy It’s OK To break THEM

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RULE 41: Avoid area charts?
RULE 41: Avoid area charts?
Rule 40: No 3D line charts
Rule 40: No 3D line charts
Rule 39: Label all the datapoints on your x-axis
Rule 39: Label all the datapoints on your x-axis
Rule 38: No unnecessary lines on line charts
Rule 38: No unnecessary lines on line charts
Rule 37: Line charts should have a key
Rule 37: Line charts should have a key
Rule 36: Lines should not be too thin or too thick
Rule 36: Lines should not be too thin or too thick
Rule 35: Add data markers to your lines
Rule 35: Add data markers to your lines
Rule 34: Always start a line chart at zero
Rule 34: Always start a line chart at zero
Rule 33: Each line should contain as much data as possible
Rule 33: Each line should contain as much data as possible
Rule 32: Every line should be a different colour
Rule 32: Every line should be a different colour
Rule 31: Line charts shouldn't have too many lines
Rule 31: Line charts shouldn't have too many lines
Rule 30: A line chart should only show change over time
Rule 30: A line chart should only show change over time
Rule 29: Use log scales for many kinds of variables?
Rule 29: Use log scales for many kinds of variables?
Rule 28: Use a clustered column to show multiple series
Rule 28: Use a clustered column to show multiple series
Rules 16-27: Bar charts - a visual summary
Rules 16-27: Bar charts - a visual summary
Rule 27: No unnecessary lines on bar charts
Rule 27: No unnecessary lines on bar charts
Rule 26: Don't use broken axes or bars
Rule 26: Don't use broken axes or bars
Rule 25: Always start your bar charts at zero
Rule 25: Always start your bar charts at zero
Rule 24: Label your bars and axes
Rule 24: Label your bars and axes
Rule 23: No 3D bars
Rule 23: No 3D bars
Rule 22: No rounded, pointed or decorated bars
Rule 22: No rounded, pointed or decorated bars
Rule 21: Bar charts need a key
Rule 21: Bar charts need a key
Rule 20: Keep a sensible gap between the bars
Rule 20: Keep a sensible gap between the bars
Rule 19: Arrange your bars, largest to smallest
Rule 19: Arrange your bars, largest to smallest
Rule 18: Don't use multi-coloured bars
Rule 18: Don't use multi-coloured bars
Rule 17: Not too many bars
Rule 17: Not too many bars
Rule 16: If in doubt, use a bar chart
Rule 16: If in doubt, use a bar chart
Rules 1-15: Pie charts - a visual summary
Rules 1-15: Pie charts - a visual summary