Professor Barnett and his colleagues suggest using bar graphs instead of pie charts. A bar graph is much easier to understand than a pie chart because you can compare the slight size of categories ...

Both bar and line graphs share a weakness in that they display only the mean values commonly employed to summarize datasets, rather than the dataset values themselves. 6 For example, using a bar graph ...

Want to speed up your work AI? Check out the brand new =COPILOT() function that has been recently added to Excel for ...

William Playfair, the father of data visualisation, changed the way we understand information. His bar graphs, pie charts, and line graphs remain essential tools today, yet his name is barely known.