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
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 15 Apr 2026 | Harvey Lloyd-Smith
A Guide To Useful DAX Formulas
DAX (Data Analysis Expression) is a library of operations and functions which can be combined to create formulas and expressions within Power BI. This blog provides a compilation of formulas which may be useful in a variety of situations
Thu 16 Apr 2026 | Ellie Kershenbaum
How to Build a Trellis Chart (Small Multiples)
If you want to display multiple charts with the same axes without the clutter, a trellis chart might be for you! In this blog, I'll go through how you can build this chart in Tableau. For this walkthrough, I will use the Sample Superstore data.
This is our starting point
Wed 15 Apr 2026 | Tomo Mensendiek
Join, Union, Relationship in Tableau Next
Combining or relating tables are done using Semantic Models in Tableau Next.
You can perform joins, unions, and define relationships within Tableau Next, but they occur in different areas of the interface, so it’s important to understand where each one is applied
Wed 15 Apr 2026 | George Rycroft
How to Build a Dumbbell Chart in Power BI
Dumbbell charts are a powerful way to compare values across different points in time or categories. While PBI doesn’t offer a built-in option to create them, they can be constructed with a bit of creativity and persistence
Wed 15 Apr 2026 | Tomo Mensendiek
Creating Tables in Snowflake
Tables in Snowflake are schema-level objects, which means they are created within a schema. To create a table, you first need to identify the schema where it will reside. Since schemas exist within databases, you must also specify the database that contains your chosen schema
Wed 15 Apr 2026 | Vivek Patel
Getting Started with Regex
If you’ve ever worked with messy data, weird text formats, inconsistent naming, you’ve probably heard of regex (regular expressions). At its core, it’s a way to search, match, and manipulate text patterns efficiently
Wed 15 Apr 2026 | Vaishnavi Shankar
Grouping Data by First Letter (A-M vs N-Z) in Tableau
There are two ways to split text fields (like State names) into alphabetical groups.
1. The first uses ASCII codes, where letters are converted into numbers. This works but is more complicated and harder to read.
2. The second uses simple alphabetical comparison (e.g
Wed 08 Apr 2026 | Oscar Kriebel
Power Query or Alteryx or Prep: How do they compare?
After having gone through comparing Tableau Prep to both Python and Alteryx, it's time to move onto another tool that we learn as part of the Data School
Wed 15 Apr 2026 | Vaishnavi Shankar
How to Make a Dynamic Stacked Bar Chart in Tableau Desktop
Why make a dynamic stacked bar chart?
A stacked bar chart is great for showing part-to-whole relationships across categories. However, smaller segments can be hard to compare and important categories may get lost in the stack
Mon 16 Mar 2026 | Kate Loder
Logical Functions
Calculated fields in tableau are a feature that allow us to derive insights from the dataset that the dataset itself does not actually provide. It is a way of finding out further information from our data that may not be immediately available to the user
Wed 15 Apr 2026 | Kate Loder
Understanding Join Types in Tableau
When working with data in tableau, there are many occasions when you need more than one table of data for your visualisation, and it is very common for these additional tables to be stored separately from each other
Sun 12 Apr 2026 | Oliver Furtak
Makeover Monday 1/2: Mastering the Balance Between Time and Expectations
Why Makeover Monday?
Working under time pressure is no walk in the park. To understand how managing your own expectations can help, the Makeover Monday Challenge offers the ideal training opportunity.
The challenge is primarily about planning and efficiency
Want to know more?
Whether you're planning for the future or you have a project that needs to get started next week our team are more than happy to help.
Complete our contact form with your name, company email and a brief message and we will get back to you as soon as we can.