You're Now Entering the Inner Sanctum of Developers!
Master joins, blends, and unions. Manage large data sets, apply LOD calculations, parameters, and sets. Build custom advanced visualizations—skills that elevate you to elite Tableau proficiency.
Data Integration – Master joins, blends, and unions to combine data from multiple sources effectively.
Advanced Analytics – Use LOD calculations, parameters, and sets to unlock advanced analytical power.
Custom Visuals – Build visualizations beyond Tableau’s defaults to stand out as an expert.
Combine, Connect, And Unify Data Sources To Unlock Deeper Insights In Tableau
Mastering data integration allows you to bring together information from multiple sources, creating a single, unified view.
You’ll discover how to seamlessly connect, combine, and manage diverse datasets for advanced Tableau analysis.
Leverage LODs, Parameters, And Sets To Deliver Powerful and Precise Tableau Insights
Harnessing advanced analytics in Tableau gives you the power to answer complex business questions with precision.
You’ll learn how to go beyond basic charts and calculations to uncover deeper insights.
Design Unique Dashboards And Create Visuals Beyond Tableau’s Defaults To Showcase True Expertise
Creating custom visuals in Tableau sets you apart as an advanced developer capable of pushing the tool beyond its defaults.
You’ll explore innovative techniques to design unique, impactful dashboards that stand out.
Expert Introduction
14_01_Introduction to Expert
14_02_Extracting the Zip Working File (Attachment)
14_03_Data Sets Explored
14_04_Mentality of Big Data Sets
QUIZ: Optimizing Performance with Large Data Sets
14_05_Union Theory - Mismatched Fields, Missing Fields
14_06_3 Different Methods for Unions
14_07_Wildcard Unions
QUIZ: Combining Data Tables with Unions
14_08_Inner Join and Left joins Explained
14_09_Outer and Full Joins. Joins without Duplicates
14_10_Simple Join Example in Tableau
14_11_Big Join in Action - Left Side Setup and Validation
14_12_Big Join in Action - Right Side Setup
14_13_Big Join in Action - Performing the Actual Join and Interpreting Results
14_14_Numerical Validation and Assessing Risk of Join Choice
14_15_Joining with Duplicates (One-to-One and Many-to-Many Relationships)
14_16_Example of Many to Many Join with Duplicates
QUIZ: Understanding 1-to-1 vs. Many-to-Many Joins
14_17_How do you deal with Unintended Duplicates
14_18_Double Join Theory
14_19_Double Joins in Action with Real Data
14_20_The Problem with Joins and Duplicate Data
14_21_The Solution is Relationships
14_22_Building the Full Data Model with Joins, Relationships and Unions
14_23_Assignment - Joins and Relationships (Problem)
14_24_Assignment - Joins and Relationships (Solution 1)
14_25_Assignment - Joins and Relationships (Solution 2)
14_26_Assignment - Joins and Relationships (Solution 3) (Attachment)
15_01_Introduction to Parameters (Attachment)
15_02_What is a Parameter - A simple example
15_03_Simple Parameter using Float
15_04_Setting a Range for Float Parameters
15_05_Parameter List with % Example
15_06_Using the String Parameter with an If Function
QUIZ: Dynamic Control with Parameters
15_07_Multiple String Parametersn in Play with Aggregation Choice
15_08_Choosing Dimensions using Parameters
15_09_Using Parameters in a Scatter Plot
15_10_Date Parameters with Boolean Check
15_11_Changing Data Granularity
15_12_Filtering With Parameters
15_13_Using Actions to Change Parameter Values
QUIZ: Enhancing Interactivity with Parameters and Filters
15_14_Assignment - Parameters (Problem) (Attachment)
15_15_Assignment - Parameters (Solution 1)
15_16_Assignment - Parameters (Solution 2)
15_17_Assignment - Parameters (Solution 3) (Attachment)
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AMAZING TEACHER
I love your course and could listen for hours. You distill valuable advice clearly. Found you on YouTube while struggling with LOD expressions; examples helped immensely. Grateful for accessible pricing and free content—your teaching is engaging and generous.
Emeline Courcelle
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GAME-CHANGING COURSE FOR FIRST-TIME TABLEAU USERS
This course is a must for first-time Tableau users intimidated by data. Jed simplifies Tableau with step-by-step guidance: setup, import data, navigate the UI, and create visualizations. Clear, encouraging teaching—confidence transformed and ready to build. Thanks for making Tableau accessible.
Adam Lockwood
“EXCELLENT COURSE
Jellyman is an excellent teacher! His content is interesting, applicable and well-explained.
He has clearly thought about the way people absorb information and doesn't gloss over any assumed knowledge like many other courses do. He has taken the time to go through methods & concepts step by step so it's almost impossible not to learn!
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Elizabeth Deterding
“AMAZING COURSE
The course is great! Feels like studying with a friend :) Everything is explained very easily and I am looking forward to the next one!
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Anastasiia Larina
“BEST TABLEAU TRAINING EVER
Totally clear and very well explained with a bunch of examples. All sensible topics – LOD, Actions and Calculated Fields are tackled.
Big Thank You!
”
Nicolaie Cozma
“I LOVE LEARNING TABLEAU WITH JED
The best teacher of Tableau I have ever found! I would love to meet Jed someday in real life. I like his sense of humor and the way he explains everything.
Jed much thanx for this course.
”
Emilia B Korycka
“JOINS WERE HOLDING ME BACK
Great – this was holding me back but not any more
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Brian Sundermeijer
“STILL LEARNING THINGS
I was wondering why we were just now covering joins when it's something I felt essential enough to be a beginner subject. Then you delved into joins versus relationships versus blends and it became much clearer – this was more complex than an entry level subject.
Great explanations all around and I have a better understanding of when to use which tool.
Update: Just finished LODs. Mind continues to be blown! Can't recommend this course enough.
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Bryan Nylander
“ONE OF THE BEST EDUCATORS ON PLANET TABLEAU
Jellyman is a fantastic teacher! His lessons are unlike others to say the least!!!
Hats off to his engineering personality and his koool sense of humour (A bit of contradiction there but definitely works like magic on our memory capacity to retain his fun lessons :)
”
“AMAZING!
Take this course even if you think you're an expert in Tableau
”
Kamirah Martin
No you don't! I designed it with Tableau Public Free Edition in mind. For places where I demonstrate capabilities in the Paid Version, I simply showcase it. But you don't need to repeat to proceed.
You’ll explore Level of Detail (LOD) calculations, advanced joins and unions, custom interactivity with parameters and sets, and strategies for optimizing data connections when working with massive datasets.
LOD calculations allow you to compute values at different levels of granularity than what is shown in the view. This gives you precise control over aggregations, enabling advanced insights that standard calculations can’t easily deliver.
At the expert level, you’ll design custom dashboards, build non-standard chart types, and craft advanced storytelling visuals that go beyond basics—helping you create dashboards that truly influence decision-making.
Yes. By mastering expert features, you’ll position yourself as a senior Tableau developer or analytics consultant. These skills help you stand out in the job market and qualify for high-level roles across industries.
This is where your journey begins here at Jellyman Education. You'll get a quick feel for what Tableau is and why it's such an amazing tool.
Now that you've made it through the "Getting Started with Tableau" course, it's time to get stuck into the real training! Here you'll learn a strong foundation of tools used throughout Tableau that prepares you perfectly for the future.
Now it's getting really good! Intermediate covers everything from Data Cleansing, Project Management, Data Structure, Quick Table Calc's, Advanced Filtering and Advanced Maps. You'll be the star of the show with these skills!
You're now delving into some of the highest and most complex operations you'll find in Tableau. LOD's, Joins, Unions, Big Data, Blending, Parameters, Sets, Advanced Dashboards and Custom Visualizations. WOW INDEED!!!!
Now it's getting really fun. Think of Tableau Cloud as the digital cafe where you and your friends meet up to share stories, information, dashboards, data, results and more. It's the future of Data Sharing in the Industry today.
With Visualizations through Tableau Desktop and data sharing through Tableau Online, it's time to tackle Advanced Data Cleansing using Tableau Prep. This is one of the most enjoyable tools you'll find especially if you clean data all day long!
Master the essentials of data analysis with SQL, ChatGPT, AI-powered SQL, and project management. Gain practical skills to solve real problems and boost your career as a data analyst.
Perfect for job seekers and freelancers—these Tableau projects help you build a standout portfolio on Tableau Public. Showcase your data skills, design thinking, and storytelling in real-world scenarios that make sharing and impressing easy.
Learn how to land your dream data analyst job with a proven system: avoid common mistakes, craft powerful applications, ace interviews and testing, and turn rejection into growth. Build confidence, skills, and a portfolio that gets you hired.
