Author name: Donna Coles

#WOW2026 | Week 23 | Can you create a double-sided multi-row Stem-and-Leaf Plot?

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Introduction When browsing around for inspiration for this week’s challenge, I came across this stem & leaf Power BI WOW challenge by Meagan Longoria, which in turn was inspired by a Tableau #WOW challenge set by Yusuke in 2024. So I thought it would be fun to go ‘full circle’ and see if I could […]

#WOW2026 | Week 23 | Can you create a double-sided multi-row Stem-and-Leaf Plot? Read More »

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#WOW2026 | Week 16 | Can you build a radar chart with map layers?

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Introduction For this week’s community challenge, I am drawing inspiration from this blog post by fellow Ambassador and new Visionary, Johan de Groot. I’ve had radar charts on my back-burner for some time, but never got round to putting out as a challenge, as felt they may seem ‘too fiddly’. But Johan shared a ‘map

#WOW2026 | Week 16 | Can you build a radar chart with map layers? Read More »

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#WOW2026 | Week 9 | Can you build a parallel coordinates chart?

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Introduction This week we’re going to build out a parallel coordinates chart – a type of visualisation used to display and compare multiple numerical measures.  My daughter, Mia, is an academy level footballer and wears a stats vest in matches and training to capture lots of data about her performance. I’d been meaning to try

#WOW2026 | Week 9 | Can you build a parallel coordinates chart? Read More »

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#WOW2026 | Week 2 | Can you create a fake Viz in Tooltip?

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Introduction Welcome back to #WOW2026! Thank you all for your continued support, and for bearing with us while we carried out some maintenance on the website. For the first challenge of the year, I’m asking you to recreate a technique that was originally introduced way back in 2010, and re-shared during a ‘tips and tricks’

#WOW2026 | Week 2 | Can you create a fake Viz in Tooltip? Read More »

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#WOW2025 | Week 44 | Can you build a satellite chart to represent values exceeding 100%?

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Introduction Some time ago the brilliant Sam Parsons, developed a “Satellite” or “Spiral” Chart as an alternative way to visualise a donut that exceeded 100%.https://public.tableau.com/app/profile/sparsonsdataviz/viz/SpiralingSatelliteCharts/SpiralingSatelliteCharts. As with many things Sam comes up with, I always want to see if I can build it, and once again it’s a great excuse for a #WOW challenge. Back

#WOW2025 | Week 44 | Can you build a satellite chart to represent values exceeding 100%? Read More »

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#WOW2025 | Week 31 | Can you build an alternative to a stacked bar chart?

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Introduction I often use the #datafam community as inspiration for my #WOW challenges, as it gives me the perfect opportunity to try out a particular technique or visualisation style, which I hope you all then benefit from too 🙂 This week’s challenge was inspired by this blog post by the Flerlage Twins, which in turn

#WOW2025 | Week 31 | Can you build an alternative to a stacked bar chart? Read More »

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#WOW2025 | WEEK 17 | Can you switch measures?

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Introduction For this week’s challenge, I’m showcasing a variety of features using data based on the English Premier League once again. Measure switching is the primary focus for this challenge, which is something many #WOW challenges have used in the past. But you may be new to the #WOW project this year, so it’s always

#WOW2025 | WEEK 17 | Can you switch measures? Read More »

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#WOW2025 | Week 10 | Can you rank by multiple measures?

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Introduction For this week’s challenge, we’re looking at data from the English Premier League (EPL) again ( this may well be a theme for me this year 🙂 ). The main focus for this challenge is ranking; specifically ranking based on multiple measures. In the EPL, as I’m sure there are with other sports, teams

#WOW2025 | Week 10 | Can you rank by multiple measures? Read More »

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