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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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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.
Thu 29 Jan 2026 | Roshan Desai
Logical Functions in Tableau Desktop
When you start working with a dataset, you quickly realise that the most useful insights aren’t always there from the start. A lot of the time, they’re things you have to build yourself from the data you already have. That’s where calculated fields in Tableau really come to hand
Wed 28 Jan 2026 | Jacob Aronson
A Blog About Blogs: Tracking The History of the DSNY Blog Thus Far
The Data School Blog is a place for new consultants to journal their time in training, whether in the form of Tableau tutorials, experiences from the training process, or personal data projects incorporating the Data School curriculum
Tue 30 Dec 2025 | Serena Purslow
Dashboard Week Days 4&5: Women's Football Analysis
For Dashboard Week days 4 & 5, DS54 will be analysing the history, performance, and growth of English women’s football using match data from the Women’s Super League and Women’s Championship.
Wed 28 Jan 2026 | Fotiana Yan
Level Up! Your Ultimate Guide to Mastering LODs
LODs are essentially a Tableau "superpower." They give you the ability to calculate data at a different level of detail than the one you are currently looking at
Thu 15 Jan 2026 | Tomo Mensendiek
3 time saving Tableau formatting options
1. Clear gridlines from all the sheets on the dashboard/workbook
Go to Format -> Workbook -> Grid Lines -> (Change Automatic to Off)
2. Expanding Tables: Ctrl + Arrows
If you ever make a table that's too small to show the measures inside, it will show # instead of the actual numbers
Wed 28 Jan 2026 | Tomo Mensendiek
Go Beyond Dual Axis
Say you want to compare two measures side to side: Sales vs Cost. You can do this by using dual axis.
Now, try adding a third measure to compare - like Target - and you will see that there is no option to do dual axis anymore
Wed 28 Jan 2026 | Francesca Plaskett
Marketing, marketing, marketing - Dashboard Week (Day 3)
Reflect on day 3 of dashboard week with me.
Tue 27 Jan 2026 | Robin Jones
Dashboard Week Day 2: Designing for cognitive diversity
Data visualisation is often built for the "standard" eye, but for individuals with dyslexia and dyscalculia, traditional dashboards can be
Wed 28 Jan 2026 | Kib Cheung
Dashboard week day 3 – Social Media Analysis
Day 3 was a pivot from "ticking boxes" to true consultancy. I traded pixel-perfect formatting for deep financial logic, building a Power BI tool that justifies every dollar of ad spend. From the 2 PM panic to a "Tom Brown approved" finish, I proved that ROAS beats "pretty" every time
Wed 28 Jan 2026 | Adil Ahmad
Dashboard Week day 3
Todays dashboard was using marketing data in order to create a report in Power BI
Wed 28 Jan 2026 | Tyler Green
Dashboard Week: Day Three - Social Media Marketing in PowerBI
For Day 3 of Dashboard Week, we were tasked with analysing 18 months of Social Media Campaign Performance data for a fictional marketing agency in PowerBI.
The brief was clear: The Head of Marketing needs a high-level, executive-ready dashboard to understand yearly performance
Wed 28 Jan 2026 | Aisha Senkubuge
Dashboard Week Day 3: Social Media Marketing in PowerBI
The Brief
Day 3 shifted gears from Tableau to Power BI. We were provided with social media campaign performance data from RWFD, containing metrics designed to measure the effectiveness and impact of marketing campaigns across digital platforms
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