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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
Alteryx
Partner of the Year
EMEA
Tableau
Community Impact 2024
EMEA ESMB
DataIQ
Data for Good Champion
Finalist
DataIQ
Best Data Academy or Skills Development
Finalist
Alteryx
Partner of the Year
Europe
DataIQ
Data for Good Champion
Champion
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.
Tue 02 Sep 2025 | Jaden Matthias
Inside Four Months of Data School
Four months ago, I began an intensive journey into the world of data and consulting. At the time, I was working in a Quality Control Lab, but I knew I wanted to expand my skills and pivot (no pun intended) into the data space
Tue 02 Sep 2025 | Ash Aravindhan
Introduction to DAX Calculations in Power BI
For newbies to Power BI, an important concept to understand are DAX (Data Analysis Expressions) and how they are used to make Measures and Columns
Wed 27 Aug 2025 | Mariia Pushkarova
Barrierefreie Farben: So prüfst du deine Palette auf Farbsehschwäche
Vielleicht habt ihr schon gehört, dass man farbfehlsichere Paletten benutzen sollte.
Mit rund 8 % der Männer und knapp 1 % der Frauen, die an einer Farbsehschwäche (Color Vision Deficiency, CVD) leiden, ist die Kombination von Rot und Grün in Visualisierungen besonders problematisch
Tue 02 Sep 2025 | Anastasiia Larina
Groups vs Sets in Tableau: What's the Difference
In Tableau there are two ways you can group your data: creating a Group or a Set. But which one should you choose, and when?
The main difference: Groups are static and Sets are dynamic (but can be static as well)
Mon 01 Sep 2025 | Aaron Holstein
An Unexpected Journey
Hi everyone,
my name is Aaron and this is my introductory blog post to get to know me a little better.
I have had a strong interest for computers and programming ever since. So today I am good frieds with the pinguin (Linux). And I am very grateful for things like Python
Sun 31 Aug 2025 | James Gastaldello
A Week of Power BI: From Raw Data to Dynamic Dashboards
The past week built upon last week's introduction to Power BI and its core features. It was quickly learned that Power BI is more than just a visualisation tool; it can be used for data preparation, modeling, and interactive reporting
Sun 31 Aug 2025 | Ayo Popoola
Data Modelling Demystified
Imagine you own a lemonade stand and you're trying to figure out how many lemonades you sold yesterday, but your data is scattered everywhere
Mon 01 Sep 2025 | Claudina Mukangabo
Are We Closing the Gap? Visualising Gender Pay Inequality
Dashboard Week Day 3 & 4
For my final training project, I analysed the Gender Pay Gap across London and the UK using government data
Mon 01 Sep 2025 | Zainul Abedin Natha
Tableau Spatial Functions Explained: How to Use BUFFER() for Geospatial Analysis
Learn how to use Tableau’s BUFFER() function to create distance-based zones around points, helping you analyse accessibility, coverage, and proximity.
Spatial analysis in Tableau has gone far beyond simple maps
Mon 25 Aug 2025 | Amy Afriyie
Date Functions in Tableau
Tableau has many date functions, all of which serve their own purpose and can be extremely powerful when you know how to use them.
However, with great options can come great confusion. From datepart to dateparse a lot of them sound the fairly similar and also appear to do relatively similar things
Mon 01 Sep 2025 | Maysa Falchero
What I’ve Learned About Comparison in Training
Starting at the Data School has been very exciting, but also very challenging. The first few weeks of training were full of new tools, new concepts, and new ways of thinking. At the same time, I found myself falling into a trap I didn’t expect: constantly comparing myself to others
Mon 01 Sep 2025 | Joseph Hughes
An Introductory Guide to Containers in Tableau
Tired of having to drag floating charts around? Frustrated when you have to re-scale every single thing inside a dashboard if you change the canvas size? I know I was during my application process.
Fear not, there is a better way.
Welcome to the world of containers
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