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How to make the best data visualisations and avoid mistakes
Piotr Ocalewicz
Data Analyst
1. Tracing the source of a cholera
outbreak in Soho, London
2. Fundamental changes in the
water and waste systems
3. Significant improvement in
general public health
1. WHY? Identify the purpose of the chart
2. WHAT? Identify the numbers to support the purpose
3. WHO? Identify the audience and focus the design
4. WHERE? Adapt the design to various constraints
Human brain can process max
6
items at once
The same report!
1. Data viz is super important!
2. Tableau is your friend
3. Don’t you dare make 3D pie charts!
4. There’s a lot of resources online and offline
5. Do proper visualisations or bounty hunters will come at you!
6. I’m looking for a new job opportunities in data analytics :-)
Contact
linkedin.com/in/piotr-ocalewicz
fb.com/piotr.ocalewicz

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How to make the best data visualization - Piotr Ocalewicz

  • 1. How to make the best data visualisations and avoid mistakes Piotr Ocalewicz Data Analyst
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  • 5. 1. Tracing the source of a cholera outbreak in Soho, London 2. Fundamental changes in the water and waste systems 3. Significant improvement in general public health
  • 6. 1. WHY? Identify the purpose of the chart 2. WHAT? Identify the numbers to support the purpose 3. WHO? Identify the audience and focus the design 4. WHERE? Adapt the design to various constraints
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  • 51. 1. Data viz is super important! 2. Tableau is your friend 3. Don’t you dare make 3D pie charts! 4. There’s a lot of resources online and offline 5. Do proper visualisations or bounty hunters will come at you! 6. I’m looking for a new job opportunities in data analytics :-)