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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
Emerging Partner of the Year
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
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 | Francesca Plaskett
Back to Basics: Aggregating in Tableau Prep, Power Query and Alteryx
This blog walks through the steps of aggregation across multiple data preparation platforms.
Mon 16 Mar 2026 | Holly Andersen
Spatial Functions in Tableau
An introduction to some common spatial functions in Tableau.
Mon 16 Mar 2026 | Holly Andersen
Type Conversions in Tableau
When working with data in Tableau, fields can have different data types, such as strings, numbers, dates, or Booleans. Sometimes the format of a field isn’t quite what you need for your analysis. This is where type conversion functions become useful
Mon 16 Mar 2026 | George Rycroft
String Functions in Tableau
Monday of week three started at pace: 3.5 hours deep-diving into calculations and functions in Tableau; a proper wake-up call after the weekend.
For this session, I focused on string functions, which are fundamental for cleaning and preparing data within Tableau
Mon 16 Mar 2026 | Harvey Lloyd-Smith
Calculated Field Functions: Numbers
If you've played around with Tableau for a short while you may have come across calculated fields. These are calculations which can be performed to any fields within Tableau to generate new fields which may be useful for a particular piece of analysis
Tue 10 Mar 2026 | Holly Andersen
Wildcard Unions in Tableau Prep
Wildcard unions are a fast way to stack tables with the same structure in Tableau Prep.
Wed 18 Mar 2026 | Francesca Plaskett
Back to Basics: Outputting the Top N results in Tableau Prep, Power Query and Alteryx
Ever needed to output the top performers in a particularly category during data prep? Learn how in this step-by-step.
Thu 19 Mar 2026 | Vaishnavi Shankar
How can containers and visualisation guidelines build better dashboards?
For my DS applications, I built two dashboards, both of which were a faff to lay out. They were a mix of tiled worksheets, floating legends and dragging things wherever they fit. Basically, a bit of a mix-and-match work of art.
The problem?
There were no rules. No structure. No consistency
Thu 19 Mar 2026 | Tobin Hardy
Tableau: Build a dynamic Top N report
In my previous blog I created a dynamic Top N report in Power BI (Link to that blog). However, that got my wondering how different/easier creating this same report would be within Tableau
Thu 19 Mar 2026 | Tobin Hardy
Power BI : Build a dynamic Top N report
Lets make a report which looks at our top selling products and includes a dynamic subtitle which updates based on our selected Top N products
Thu 19 Mar 2026 | Roshan Desai
Learn What The Data School Learns
As part of our training at the Data School, we ran a “Learn What the Data School Learns” day where members of the public joined us to experience what life is like inside The Data School
Thu 19 Mar 2026 | Roshan Desai
#WOW2025 Week 42 Dynamic Dimension Colouring
https://public.tableau.com/app/profile/roshan.desai/viz/WOW2025WK42/Dashboard?publish=yes
This week’s Workout Wednesday explores a concept that feels simple on the surface but quickly becomes more interesting the further you get into it: dynamic dimension colouring
Want to know more?
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