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The Unbearable Lightness of Pie Charts [Data Visualization for Excel Users]

Well, a data visualization book cannot avoid pie charts, so here it is, a page about pie charts for my tutorial Data Visualization for Excel Users. Enjoy and comment, please...  

By | January 16th, 2012|Categories: 09 Chart types: parts of a whole, Chart Types|Tags: |6 Comments

12 Data Visualization Questions I Have No Answers For

We stop loving someone or something when we feel there is nothing more to discover, when we have no more questions, when we don't care about the answers. I started writing my Data Visualization for [...]

By | January 12th, 2012|Categories: 14 Effective design, Design|Tags: |14 Comments

Data Visualization for Excel Users: Gestalt Laws

A new page for my tutorial Data Visualization for Excel Users is available. It's about Gestalt laws. Don't forget to leave a comment!  

By | January 10th, 2012|Categories: 02 Human visual perception, Design|Tags: , |Comments Off on Data Visualization for Excel Users: Gestalt Laws

How many meters in a mile? Depends on resolution

Here is an interesting technique: using two y-axis to display the same data at different resolutions. Yellow (BMI) and blue (Weight) lines should overlap (there is a one-to-one correspondence between BMI and Weight [...]

By | January 6th, 2012|Categories: 14 Effective design, Design|Tags: |4 Comments

A course for the invisible data visualization users

I like to call it the invisible data visualization: all those Excel charts made for private consumption by product managers, accountants, marketeers, sales reps. You can't see them but they are there, and millions of hours [...]

By | January 4th, 2012|Categories: 05 Data visualization, Authors and Books|Tags: |4 Comments

Patterns of Knowledge

Data visualization is about finding and communicating patterns. But here is an often-forgotten truism: patterns are not some kind of ready-to-wear knowledge. You can look at a chart and have an epiphany and the person [...]

By | December 14th, 2011|Categories: 05 Data visualization, Design|Tags: |4 Comments