If so, keep reading. These proven best practices will help. To keep things short, I’ve limited my suggestions to the two most commonly used data viz devices: pie charts and bar graphs.

Data Interpretation questions helpsprepare for competitive exams covering pie charts, bar graphs, puzzles, and logic. Check ...

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.

They can also misrepresent data entirely, especially when data add up to over 100%. Here are some alternatives to pie charts that sound just as tasty, but are easier to digest. Bar charts ...

Guidelines: While most bar charts should be converted into accessible tables, this simple chart can be presented as text in a list. Provide the title and labels. It is not necessary to describe the ...