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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
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EMEA
Tableau
Community Impact 2024
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Data for Good Champion
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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.
Wed 09 Jul 2025 | Rosh Khan
Tableau Next: Building Visualisations
Welcome to the Tableau Next Blog Series!
In this 5-part series, I’ll walk you through the end-to-end process of working in Tableau Next — from loading data all the way to building a functional dashboard
Wed 09 Jul 2025 | Kieran Joymungul
How to create boolean parameters in Tableau Next (you can't...yet)
Wed 09 Jul 2025 | Rosh Khan
Tableau Next: Building a Semantic Model
Welcome to the Tableau Next Blog Series!
In this 5-part series, I’ll walk you through the end-to-end process of working in Tableau Next — from loading data all the way to building a functional dashboard
Tue 08 Jul 2025 | Agnes Amer
Create a Parameter in Tableau Next
Including Parameters in your dashboard in Tableau Next, provides the User with the ability to control different aspects of the visual - this could be enabling the User to select a specific date range, or even switching between viewing Revenue or viewing Profit in a visual
Wed 09 Jul 2025 | Rosh Khan
Tableau Next: Loading Data from Scratch
Welcome to the Tableau Next Blog Series!
In this 5-part series, I’ll walk you through the end-to-end process of working in Tableau Next — from loading data all the way to building a functional dashboard
Thu 05 Jun 2025 | Stefan Ladwig
Alteryx vs. Python I
Let's compare data prepping in Alteryx and Python.
We'll start with Alteryx in this Blogpost and continue with Python next time.
The Challenge
As an example we will use a simplified version of this data prep challenge:
Our Data lies in two
Tue 08 Jul 2025 | Benjamin Wortmann
What I took away fromt ITCS 2025 in Hamburg
On 4th of July, The Data School - including myself, was represented at the ITCS in Hamburg to inspire people about data. Before I share my experience and impressions, let me briefly introduce what the ITCS is all about
Tue 08 Jul 2025 | Harvey Joyce
From Local Script to Serverless: Running a TfL API Python Script on AWS Lambda
This blog covers the steps I took to create a Lambda function and setting up a trigger to get it to work automatically
Tue 08 Jul 2025 | Ahsen Polat
Von Besucherin zur Beraterin – meine Eindrücke vom ITCS Hamburg 2025
Freitag am 04.07.2025 war ich gemeinsam mit einigen Kolleg:innen auf der ITCS Konferenz in Hamburg unterwegs – ein Event, das für Tech-Fans und Karriereinteressierte gleichermaßen spannend war
Tue 08 Jul 2025 | Gabriela Scherbinek
Ein Wasserfall-Diagramm mit Tableau erstellen: Vom Ausgangswert zum Ergebnis
Manchmal sagt eine einzelne Zahl einfach zu wenig. Natürlich ist es wichtig zu sehen, dass der Gewinn gesunken ist oder das Budget überschritten wurde. Aber noch wichtiger ist zu wissen, warum. Welche Faktoren verursachen die Veränderung?
Hier kommt das Wasserfall-Diagramm ins Spiel
Mon 07 Jul 2025 | Salome Grasland
Click-Swapping Drill-Down Maps in Tableau (State → City)
(Tableau 2023.1+ • Sample – Superstore)
Learn how to build a Dynamic Zone Visibility drill-down in Tableau that lets users Ctrl-click multiple states, instantly reveal a city-level map, and click once to swap back to the U.S
Mon 23 Jun 2025 | Freya Marijatta
Basic tools in Alteryx: A comparison with Tableau Prep
Much like Tableau Prep, Alteryx is an ETL tool that functions primarily through drag-and-drop rather than from the code line, visualising the final workflow as interconnected steps
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