Graph theory isn’t enough. The mathematical language for talking about connections, which usually depends on networks — vertices (dots) and edges (lines connecting them) — has been an invaluable way ...

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 ...

Visio in Microsoft 365 is a superb tool for creating custom diagrams to illustrate concepts that are difficult to explain through text. Here’s how to use it. It’s often much easier to convey ...