Build your Team
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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Community Impact 2024
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Alteryx
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Europe
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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 18 Mar 2026 | Oscar Kriebel
Don't be a Dummy: Use a Dummy Highlighter
In Tableau, there's many different actions that you can implement to add some interactivity to your worksheets and dashboards
Tue 03 Mar 2026 | Vivien Lee
Functions in Power BI
This blog is about wrapping my head around the functions in Power BI. At the moment I can figure out what functions I can use but I'd love to be at a point where I just write measures without going through the list of what's what in my head first
Sun 22 Mar 2026 | Shabnam Dost
Building Your Data House: Connecting Tables Without the Stress of Joins.
The Architecture of Data: Why Your Model Needs Rooms, Not Just Storage
When building a house, you don't just throw bricks in a pile and hope a kitchen appears. You need a plan. Data works the same way
Mon 23 Mar 2026 | Ellie Kershenbaum
Tableau Fundamentals: Sets and Parameters
Sets and parameters add flexibility to dashboards and often power some of the less obvious interactions behind the scenes. They enable dynamic filtering, user-driven analysis, and responsive visual elements without requiring complex redesigns
Wed 18 Mar 2026 | Ellie Kershenbaum
Enhancing My iNaturalist Tableau Dashboard with Image URLs
For my latest Tableau dashboard, I sourced data from a platform called iNaturalist, where users upload images and observations of wildlife they encounter. To keep the dataset manageable, I filtered the records to include only observations from London between 2024 and 2025
Mon 23 Mar 2026 | Francesca Plaskett
Completing 1 Data Prep Challenge in Tableau Prep, Alteryx and Power Query
Explore how simple data preparation steps vary across platforms using the 2023 - Week 1 Preppin' Data challenge.
Mon 23 Mar 2026 | Aschraf Aouina
Mastering the Dashboard Sketch: A Strategic Guide to Stakeholder Presentations
Is there a "perfect" way to present a dashboard sketch? The short answer is no. Your audience changes, your requirements shift, and the setting varies. The real challenge lies in balancing the needs of technical and non-technical stakeholders
Sun 22 Mar 2026 | Oliver Furtak
Reflective Backlog - The first 3 weeks at The Information Lab
Time Flies
Since starting at The Information Lab’s Data School, time has absolutely flown by. The sheer number of impressions and experiences accompanying my workday has left a bit of chaos in my head
Sun 22 Mar 2026 | George Chachkes
Intro to APIs in Alteryx
APIs (Application Programming Interfaces) are tools that allow different pieces of software to communicate with each other. Most websites have their own APIs, which makes it much easier to extract data once you know how to connect to them
Sun 22 Mar 2026 | Durkka Rajasegaram
SUM() vs SUMX() in Power BI: What's the difference?
Explanation of the fundamental concepts behind the SUM() and SUMX() functions in Power BI, and how they differ.
Tue 17 Mar 2026 | Britt van der Poel
Creating a Data Scaffold with Recursive CTEs in Snowflake
Recursive CTEs (Common Table Expressions) function as any ordinary CTE, with the additional functionality of referencing itself – hence 'recursive
Thu 19 Mar 2026 | Laura Brylka
Zeilen- vs. Spaltenbasierte Berechnung in Tableau
Wann und warum ist es wichtig, ob wir spalten- oder zeilenbasiert berechnen?
Wenn wir mit tabellarischen Daten arbeiten und z.B. Prozentsätze berechnen wollen, ist es wichtig zu verstehen, auf welche Art und Weise wir das tun, um keine Fehler zu generieren
Want to know more?
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