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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
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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 11 Jun 2026 | Sharon Orazulike
Goodreads Personal Project: Building a whimsical and cosy dashboard
So far all my Tableau dashboards have been very corporate and fixed, I haven't made anything out of the realm of ordinary yet. Until this project. Data visualisation isn't just for boardroom meetings—it’s also a powerful tool for visual storytelling
Tue 21 Apr 2026 | Sharon Orazulike
Remaking my NHS Power Bi Dashboard in Tableau
The finale of this series is finally here! And yes there are a lot of changes from the Power Bi dashboard to this one in Tableau. I got offered feedback on the Power Bi one and I used that feedback to implement the changes you see in this Tableau dashboard
Wed 03 Jun 2026 | Ping HIll
Structuring Your Own Data for a Tableau Radar Chart
I recently came across this Workout Wednesday, where I was challenged to create a Radar Chart. This challenge was based on a map layers technique by Johan de Groot, with a great walkthrough by Donna Coles, which I’ll link to both at the end
Wed 10 Jun 2026 | Holly Andersen
Getting Started with Regex: A Practical Reference Guide
Regex, short for regular expressions, is a way of finding patterns in text. It can be used to check whether text matches a certain format, extract part of a string, replace unwanted characters, or split messy text into useful pieces
Wed 10 Jun 2026 | Mila Kholodiy
Power BI KPIs: Choosing the Right KPI Visual
From bullet charts and gauges to sparklines and waffle charts, Power BI offers multiple ways to visualize performance. Here's how to choose the right KPI visual for your audience and business objective.
Thu 04 Jun 2026 | Holly Andersen
Control Charts in Power BI
A control chart is a line chart with added context; it shows a value over time, along with upper and lower control limits. These limits help show whether a value is behaving within its normal range, or whether a point looks unusually high or low
Thu 04 Jun 2026 | Holly Andersen
Dynamic Number Formats in Power BI
Power BI includes plenty of built-in formatting options for numbers. For many reports, choosing currency, percentage or decimal places from the formatting menu will do exactly what you need. However, sometimes you want a little more control
Wed 10 Jun 2026 | Carla Villafana
Basic Table Functions and Calculations in Tableau
Have you ever built a chart in Tableau and wondered how each value compares to another, or how those values change over time? If so, table calculations might be a helpful tool.
To begin, let’s debunk some misconceptions.
1
Mon 08 Jun 2026 | Arushi Pant
How to filter the top X products alongside other products in Power BI?
While working on a recent Workout Wednesday Challenge, https://www.workout-wednesday.com/2024-week-31-power-bi-topn-and-others/ .I needed to filter a visualisation to show the "Top N" items while grouping everything else into an "Other" row
Wed 03 Jun 2026 | Amelia Young
Parameters
How to create parameters in Tableau Desktop vs. Power BI.
Mon 08 Jun 2026 | Gerard Najarro
Tableau’s Aggregate Functions: A Beginner’s Guide
A few weeks into training at The Data School, our cohort was given an assignment. Each of us was assigned a folder from Tableau’s calculated field function library and tasked with becoming an expert on it. My folder was Aggregate
Fri 05 Jun 2026 | Ben Hayward
SQL Murder Mystery Walkthrough (Spoilers)
Solving a murder using SQL with some learning along the way.
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