Presenting Data Visualizations to Clients
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Transcript of Presenting Data Visualizations to Clients
quantilicious
“The greatest value of a picture is when it
forces us to notice what we never expected
to see.” - John Tukey, 1977
Today
Presenting visualizations in PowerPoint decks
Dealing with graphical complexity
Common visualization pitfalls
Tufte’s data-ink ratio
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Presenting Visualizations in PowerPoint Decks
Serve your insights on a platter
Stay brief and to the point
Know when to move on
Be prepared to shift course
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Tell a consistent story
Have supporting slides ready to go
Do the cognitive work for your audience
Provide memorable ‘takeaway’ sound bites
Serve Your Insights on Platter
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CEO salary has risen and fallen over time
• Not clear whether the insight is referring to Average Salaries or Maximum Salaries
• Forces the reader to do the work
• No time reference
• Does not tell the whole story (maximum salary rose, then fell, then rose again)
Insight Generation Tips
Point to the trend, outlier or feature
Describe the trend, outlier or feature
Refer to the greater context that may
not feature in the data
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Include a time reference
Add value beyond what is obvious on the chart
Leave no chart variable behind
Serving Your Insights on a Platter
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Maximum salaries fell over
2008-2009, coinciding with
the GFC.
Whilst maximum
salaries recovered in
2012, they have still not reached pre-GFC levels.
On average, CEO salaries
have not increased in real
terms over 2007-2012
Show Your Insights
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Maximum salaries fell over
2008-2009, coinciding with
the GFC.
Whilst maximum
salaries recovered in
2012, they have still not reached pre-GFC levels.
On average, CEO salaries have not increased in real terms over the
previous 6 yearsGFC
Super Smash Brothers Melee Consistent High Performers
Consistent high
performers
remained in the
top 5 over the
study duration
Create Memorable Soundbites
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“Jollibee has gained 5% market share relative to McDonalds”
“Digital marketing spend consumed a greater proportion of the total marketing budget.”
“Jollibee fries 5% from Macca’s Market Share”
“From data to dollars: digital marketing is an increasingly important channel”
Higher Levels of Chart Complexity
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Dual Axes Charts OK
Know your subject matter
Serve your insights on a platter
Insights with Higher Levels of Chart Complexity
22
More opportunities
closed in April-May led to higher sales revenue in
May-June (EOFY)
More opportunities lost in July-August followed by a
period of low sales
End of Financial Year
Dual Axes, Quad Variable Time Series and Bar
Chart
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TVRs Price Distribution Volume Sales
Staged Introduction of Layered Time
Series
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Staged Introduction of Layered Time
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TV
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Series1
Staged Introduction of Layered Time
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TVRs Volume Sales
Staged Introduction – The Final
Product
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Paste as Excel Objects
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Hover for exact values
Give Upper Management ownership of your numbers (to push your business case)
Delete variables on the fly
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Price Volume Sales
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$60.0
$66.2
$79.2 $81.6$76.8 $79.2
$84.0 $84.0 $84.0 $81.6 $79.2
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Co
mp
any
Val
uat
ion
($
Bill
ion
s)
Facebook, Inc.: Company Valuation
Be Mindful of Gridlines and Borders
If there are significant differences in the slice sizes, a pie chart can be OK (although a bar chart is better)
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Pies vs Bars