In the 4th session of Chandoo.org podcast, lets talk about Pie charts.
Pie charts evoke strong opinions among analysts & managers. Some people love them and can’t have enough of them in reports. Others despise them and go to any lengths to avoid them. And that is why we are going to talk about them in this session.

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What is in this session?
This sessions is all about pies, donuts, bars & bubbles. Yummy, I say!
You will learn,

- Special, secret transmission from guest stars
- What is a pie chart?
- Why they work? 2 reasons
- Why they don’t work ? 4 reasons
- Cousins & siblings of Pie charts
- Donut charts
- Gauge charts (speedometer)
- 3D pies
- Area charts
- Bubble charts
- 4 Situations when making a pie chart is ok
- Alternatives to Pie charts
- Mistakes you should avoid
- About the resources
- Conclusions
Go ahead and listen to the show
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Links & Resources mentioned in this session:
Books mentioned
Articles & Discussion on Pie Charts
Good examples of Pie charts
Bad examples of Pie charts
Debatable examples of Pie charts
- World polls chart – pie + donut – interesting but questionable
- Pie of a pie of a pie chart – interesting but avoidable
Alternatives & Improvements to Pie charts
Extra resource:
Note about book links: The links to various books mentioned in this podcast are affiliate links. It means when you click on them & purchase, good folks at Amazon pay me a few cents. I recommend these books because I genuinely love them. I would have recommended even if there is no benefit to me.
Transcript of this session:
Click here to download the transcript.
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Do you use Pie charts?
I do not avoid them completely. Once in a while I like to throw a pie in to my dashboards. They are a great way to visualize data despite the pitfalls.
What about you? Do you use pie charts? Please share your experience using comments.

















6 Responses to “A quick personal update”
Thank you for the personal update. It was quite encouraging and a breath of fresh air in my Inbox. Take care and stay safe.
David
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Virus obstructs lungs with thick mucus that solidifies.
Consume lot hot liquids like tea, soup, and sip of hot liquid every 20 min
Gargle w antiseptic of lemon, vinegar, & hot water daily
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Hang dirty clothes in sunlight/cold overnight or wash immediately.
Wash metal surfaces as it can live on them 9 days
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Wash hands foaming 20 sec every 20 min
Eat fruit/veg and up zinc levels.
Animals do not spread it
Avoid common flu
Avoid eat/drink cold things
If feel sore throat do above immediate as virus is there 3-4 days before descends into lungs
Would love help with my database mgt in excel.
Thanks for being thoughtful of us.
BTW How do you track your expenses/income in excel? Can you share the worksheet please.
Stay safe you and your family, best wishes.
Thanks for the update and happy to know that you and family are doing good. A 21 day lockdown has now been announced in India (I live around Kolkata) so it's uncertain times ahead. I check up on your wonderful articles often and will do so even more regularly now. Stay safe and God bless.
Hi from Argentina, I follow you for a lot of years now. We here are in a quarantine for 2 or 3 weeks, because the pandemia.
Excel is also my passion and I came here looking for a Num2Words formula, but in spanish. If anyone have it, please let me know.
Best regards.
Pablo Molina
La Rioja - Argentina
I'm glad to have your personal update. I'm from India & following you for so many years. Cheers to have any further personal update.