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...
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 [...]
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!
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 [...]
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 [...]