Bar graphs seem like one of the simplest ways to represent data. Many people assume that the longer the bar, the bigger the number it represents. Sometimes bar graphs represent an average not a total ...

School’s almost here, which means so’s the task of buying school supplies. If you’re a high school or college student—or if you’re buying stuff for someone who is—one of the items on that list is ...

A tweet directed me to an interesting article on world population. The author, Jonathan Good, asks the percentage of people who have ever lived that are alive today and then estimates the answer. The ...

Graphs are pictorial representations of numbers. Therefore, at the least, we should expect that the representation of the numbers be proportional to the numbers themselves. Unfortunately, this is not ...

The field of graph drawing and crossing numbers occupies a pivotal position at the intersection of computational geometry and network visualisation. Researchers in this domain strive to develop ...