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Enhancing your data team with ours
Our consultants come armed with both technical and soft skills to support you to make the most of your data.
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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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.
Wed 11 Mar 2026 | Janina Grauel
Why I Built My Own Chart Library in Excalidraw
In our first week at The Data School, we learned to use Excalidraw to wireframe dashboards. Sketching is a great way to align on a vision with the team and stakeholders early on, long before we start building anything in Tableau
Wed 11 Mar 2026 | Britt van der Poel
Using RegEx in Alteryx
RegEx (short for Regular Expression) is a sequence of characters that allows a user to extract a subset of a string from a field
Thu 12 Mar 2026 | Adil Ahmad
Sun burst
This blog will take you through how to create a sun burst chart as seen in my End Of Year Overview dashboard.
Take a look at it here.
Creating The Chart Structure
The first step to creating the chart is to create a calculated field that uses the makepoint function to create a point at 0,0
Wed 11 Mar 2026 | Francesca Plaskett
A step-by-step on creating sun burst adjacent charts in Tableau
Follow along in a beginner's guide to creating these fun sun burst style charts in Tableau.
Wed 11 Mar 2026 | George Chachkes
Extracting and Transforming my Online Chess Data using Python and Tableau Prep
Playing speed chess online is a fun hobby, but it does not necessarily lend itself to chess improvement. It is very easy to lose a game, and instead of doing the responsible thing and reviewing the mistakes, start another game
Wed 11 Mar 2026 | Tomo Mensendiek
Reg Ex 101
This blog will cover 1) why use Regular Expressions? and 2) how to use Regular Expressions?
1) Why use Reg Ex?
Say you had data about sofa listings online. You had the sellers name, product name, and the description that the seller left
Tue 10 Mar 2026 | Shivam Wadhia
Power BI Vs Tableau
Before diving in, it’s worth saying that there are many reasons why an organisation might choose Power BI over Tableau, or vice versa. Factors such as cost, existing technology stacks and organisational expertise all play a role
Wed 11 Mar 2026 | Britt van der Poel
Using Parameter Actions and Calculated Fields for Quadrant Analysis
Parameter actions are one of Tableau's most powerful features. In the walkthrough below, I'll explain how you can use parameter actions and calculated fields to tell a story with your data
Wed 11 Mar 2026 | Roshan Desai
Workout Wednesday 2025 W37 – Adding a Baseline Bar in Power BI
This week’s Workout Wednesday challenge focuses on a really practical reporting problem: how to show a baseline inside a bar chart as if it were just another category, rather than using a standard reference line
Wed 11 Mar 2026 | Nicola Huetz
Designing for Flexibility: My Approach to #WOW2025 Week 34
2025 Week 34 | Build a Dynamic TopN report
/ Power BI, Workout Wednesday / By Juliana Smith
Wed 11 Mar 2026 | Harry Singler
Building a Premier League Stats Dashboard in Tableau
This week I started building a football dashboard in Tableau looking at goal contributions in the Premier League.
I used public player and appearance data, starting by unioning the appearances.csv and players.csv files, with player_id as the relationship between them
Wed 11 Mar 2026 | Britt van der Poel
How to Create a Drill Down with Set Actions
Drill downs are great for reducing visual clutter and engaging the end user to interact with the dashboard. They can be built using either Set or Parameter actions – in this blog I'll walk you through creating a drill down with Set actions.
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