Blog My favourite pie charts A bit of fun. Some of them are more favourite than others! Click on the thumbnail for the full image, more info, and sources. Florence Nightingale wasn’t quite the inventor of the pie chart, but she was a pioneer in using the ‘polar area diagram’ variant in visualisation of health data. Source. The Pie of Knowledge, augmented by a sixth slice courtesy of the unconscious. Slice sizes do not quite reflect reality! Source for slices 1-5. The new Department of Education. “This is a team this represents Britain” – David Cameron. Lies, damned lies, and truth-revealing data visualisation. Source. “I am 87% sure my local paper doesn’t know how pie charts work.” Source. I’m not complaining about the numbers, but this has to be the worst pie-chart visualisation ever. England v Wales in the 2016 Six Nations. Happy St David’s Day! Source. Pie charts have come a long way since Florence Nightingale. Pie charts have come a long way since Florence Nightingale but they can still be vital decision-making tools. Source. I will just leave this here. Source.