A reader need go no further than page two of Leland Wilkinson’s The Grammar of Graphics before reading, “We will also come to realize why a histogram is not a bar chart and why many other graphics ...

Thanks to their visual simplicity, bar graphs are popular tools for representing data. But do we really understand how to read them? New research has found that bar graphs are frequently misunderstood ...

Q. My supervisor wants me to include more data visualizations in my projects. Do you have any suggestions? A. Data visualization transforms raw data into graphical representations, making complex ...

Choosing the right type of chart helps you display discrete data more effectively. Discrete data consists of whole numbers that are counted rather than measured. For example, when you track items sold ...

Excel’s chart features can turn your spreadsheet data into compelling visual communications—if you know what to do. This guide will walk you through the basics of setting up trends, percentages, ...

You won’t believe how easy it is to create animated bar charts in the R programming language to show rankings over time. Racing bar charts can be a useful way to visualize comparative data over time.

See how easy it is to create interactive web graphs from ggplot2 visualizations with the ggiraph R package. You can even link graphs so that clicking one dataviz affects the display of another. Static ...