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.
Mon 27 Jul 2026 | Skyla Patterson
Understanding Cardinality in Power BI
What is cardinality in Power BI?
Cardinality in Power BI describes how two tables relate to each other in a data model view; it shows where the data moves to and from in the relationship. Let's walk through what this looks like
Tue 28 Jul 2026 | Bianca Beingolea-Joseph
Fixing My Bad Documentation Habits
Last week, DSNY13 was given a simple task: pretending that we were taking over an (unreachable) previous consultant's work, we were to build on another cohort member's work with only the documentation they had made available to orient ourselves
Fri 24 Jul 2026 | Dylan Serino
How to Create a Control Chart in Tableau
Today I'm going to walk through how to create a control chart in Tableau. Control charts are mainly used to track data over time, show if processes are stable, and identify any normal variations from real areas of concern
Wed 29 Jul 2026 | Ruth Amarteifio
What did it take to get into DS59?
DS59 are settling in nicely to their 4 month training period, so it's a great time to look at what it took for them to get into The Data School.
Mon 20 Jul 2026 | Marcus Rocco
The Data Journey: Where Data Lives
Data needs a home.
Whether you are shopping online, scrolling through social media, or streaming your favorite show, every interaction generates data. But what happens once that data is created? Before it can be shared, analyzed, or used to support business decisions, it needs a place to live
Wed 22 Jul 2026 | Stefani Hermanto
An Introduction to Aggregations and Pivots in Tableau Prep
Aggregations and pivots are just two of the many ways you can transform data. In this blog, I'll be defining each one, providing examples, and covering how you can achieve them in Tableau Prep
Wed 29 Jul 2026 | Mila Kholodiy
One Tool, Two Dates: Building a Working-Days Macro in Alteryx
An Alteryx macro that turns a fiddly ten-tool workflow into a single icon: pick a start and end date, and it hands back every working day between them — weekends and public holidays already stripped out — plus a count, no rebuilding required.
Wed 29 Jul 2026 | Stephanie Pichardo
Alteryx First, Tableau Second: Building Smarter Maps
If you have a relatively clean dataset and simply plan to make a map, you might be surprised at the suggestion to use Alteryx to further expand your spatial assets. The reality is thatAlteryx stands out across all tools for its ability to handle complexity in spatial data
Wed 29 Jul 2026 | Stephanie Pichardo
The Barbell Chart: Two Dots, One Story
The barbell/dumbbell chart is an excellent way to show a direct comparison between two measures: either two different measures within the same category, or the same measure across two points in time." . Picture two dots connected by a line, like a barbell at the gym
Tue 28 Jul 2026 | Nika-Kare Pierre-White
Understanding the Tableau Ecosystem
When you think of Tableau, your first thought may be Tableau Desktop or Public, interactive dashboards and visualisations
Fri 24 Jul 2026 | Joe O'Connor
Setting Up Your Coding Project: .venv, .env, and .gitignore
When you first start coding, it’s easy to get into the habit of creating a script on your Desktop, running pip install for your required libraries, and hardcoding credentials into the file.
In reality, that approach quickly falls apart
Mon 27 Jul 2026 | Gerard Najarro
An Intro to Tableau Prep
A few weeks ago I had the pleasure of leading a section of Learning What the Data School Learns. My topic was on Tableau Prep. I had a number of people mention how much they enjoyed the lesson and thought it would be great to give a rundown here
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.