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The Data School has been paramount to our success at JLL. It has allowed us to bring in highly skilled Tableau and Alteryx consultants. It saves considerable time trying to recruit contractors as I know their skills and training are to the highest standard. Over the past 5 years my team has developed analytical insights which have generated multi million dollar savings of which a considerable amount can be attributed to the Data School consultants we have had working on projects.
Paul Chapman, Global Director of Performance Management, BI and Innovation at JLL

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Europe

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Data for Good Champion
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Tableau
Data for Good 2021
EMEA
What our consultants are working on
We believe that sharing knowledge and expertise is key to driving innovation and growth in the data community. That's why we're excited to share our latest insights, tutorials, and industry trends with you through this blog.
Written by our team of experienced data consultants, these posts aim to solidify their own learning while giving back to the community.

Mon 01 Sep 2025 | Maysa Falchero
Anspruch vs. Realität
Ich wollte schon immer, dass meine Arbeit genau so aussieht, wie ich sie im Kopf habe, aber sobald ich unter Zeitdruck stehe (wie bei unseren Freitags-, Kundenprojekten, oder zum Beispiel Makeover Mondays), klafft meine Vorstellung oft von der Realität auseinander

Fri 17 Oct 2025 | Maysa Falchero
This Week's Client Project: U.S. Flight Data in Tableau
In this blog I would like to write about how this week's client project went. For those who don’t know what that is, each week we work with a different client who brings us a specific case. We then have three days to analyse the data, work as a team, and deliver our results

Wed 08 Oct 2025 | Joss Lazenby
Workout Wednesday 2025 Week 19: Advanced Dumbell Charts in PowerBI
This week, I tackled a PowerBI Workout Wednesday which utilised a dumbell chart with 3 points on the line. PowerBI doesn't support dumbell charts natively, and we didn't use any custom visuals to achieve this, so how was this possible?
I started by loading in our data using the data

Sat 11 Oct 2025 | Elizabeth Archer
Sorting dates within a filter in Tableau
I recently wanted to be able to show the dates in a filter with the most recent dates at the top (sorted descending). Within a filter you can usually change the sort order by changing the default properts > sort. However, this does not work with date data types


Tue 14 Oct 2025 | Megan Harrington
How to make an accordion (or collapsible) bar chart
Accordion (or collapsible) charts can help keep dashboards clean by showing key information first and letting users expand sections for more detail when needed. This approach makes dashboards easier to read and more flexible for different users
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