Steve Fenton

Pie Charts

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When to avoid using percentages

Percentages can be absolutely brilliant. They can remove a ton of distractions and questions and give you a strong indication of some numbers. For example, it is handy to know that 30% of your visitors are browsing using Internet Explorer and 4% are using Opera. This is probably easier to grasp as a percentage rather […]

Response to pie chart comment

I received a message from Kester Takayama, which was a well written note in defence of the pie chart. Kester correctly notes that adding the third-place party to the first-place or second-place party doesn’t in itself create a government because they still may not have an overall majority. He also correctly pointed out that while […]

Even worse than a pie chart

How long has it been since I last spotted a rubbish pie chart. Okay, I admit it – it was last month. It is actually quite easy to spot them because actually all pie charts are awful. So why is this one so bad? Simple. A two-dimensional pie chart has been proven to be hard […]

Column charts can lie too

My views on pie charts are well known, but that isn’t to say that all other charts are good. The problem with pie charts is that they make it hard to understand information, but with many other charts, the problem is how people use sneaky tricks to deceive you. Whether it is a strange use […]

British Pie Week

From 5th to 11th March 2012, it’s British Pie Week. While I am a keen supporter of British Pies, especially the Apply Pie my Wife makes, this week serves as a timely reminder on how data is the worst ingredient for a pie. On the same day that British Pie Week launched, I happened upon […]

The latest shameful pie chart

The latest in what is threatening to become a series of insidious examples of pie charts in a real special pie chart. This one was spotted by Mr R Lambert of Winchester. Even if you were a fan of pie charts you would have to admit that there are massive problems here. For starters, those […]