We, analysts take pride in the fact that we tell stories. But what if you have a boss, client or colleague who wouldn’t buy the story?
This is a problem we face often. Let’s say your boss has stubborn opinion about something, like more advertising leads to more sales. You know the data doesn’t support this theory. But how do you change your boss’ mind?
Here is an interesting way, showcased in NY Times recently.

Changing stubborn opinions with visualizations – 3 step process:
Assuming we are talking about ad spend vs. sales example:
- Ask your boss to draw a line that (s)he thinks to be true.
- Then show the line from original data (or observations).
- Tell your boss how accurate / wrong his(her) line is.
This technic can be very persuasive if you make it interactive.
For more on how NY Times implemented it, check out this page:
How family income affects children’s college chances
Your thoughts please:
Here are 2 questions for you:
- How do you change someone’s mind using data?
- How would you implement these concepts in Excel?
Go ahead and share your thoughts in the comments section.
I have a stubborn opinion that only 1% people who read articles on Chandoo.org leave comments. Change my mind. 🙂

















8 Responses to “Introducing PHD Sparkline Maker – Dead Simple way to Create Excel Sparklines”
This looks like it could be very useful for a project I'm putting together right now, thank you so much. Quick & silly question, how do I copy & paste the sparkline as a picture?
Question answered. For anyone else:
Select chart>Hold Shift key & select Edit/Copy Picture>Paste
[...] more information about PHD Sparkline Maker, please read this article and to learn more about Sparklines, read this article from Microsoft Excel 2010 blog. Also there [...]
Am I right in thinking that the y-axis is set automatically by excel?
That makes it possible to get the column chart not to start at zero.
Andy - yes, it is currently set to 'auto', which defaults to a zero base for positive values, but you can change that by left-clicking the chart, then choosing (in Excel 2007):
"Chart Tools/Layout/Axes/Primary Vertical Axis/More Primary Vertical Axis Options"
PUBLIC SERVICE ANNOUNCEMENT: When manually editing a chart's minimum/maximum axis values, PLEASE be sure there's a valid reason and that doing so won't skew the message shown by the data (e.g. by exaggerating differences). If in doubt, go back and read Tufte. (W.W.T.D.?)
[...] gridlines, axis, legend, titles, labels etc.) and resize it so that it fits nicely in a cell [example]. This is the easiest and cleanest way to get sparklines in earlier versions of excel. However this [...]
thanks for the work creating the template!!!!
looks good