Forbes contributors publish independent expert analyses and insights. Gus Alexiou is a London-based reporter covering disability inclusion.

We've all seen presentations that made us wonder, "What, exactly, is that graph saying? What am I looking at?" Hopefully, we haven't all given those presentations, but let's be honest—many of us ...

In geography it is important to be able to read and understand data that is presented in a range of different ways. We often use graphs to present data in a clear and accessible way. There are many ...