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.
Introduction - Section Outline
Data Inspection and Story (Attach zip File)
The Mentality of Big Data Analytics
Union Theory - Standard, Mismatch Fields, Missing Fields (Attach Excel File)
3 methods for Performing Unions
Wildcard Unions
Join Theory (Attached PDF Guide)
Joins Visually Explained
Basic Join in Tableau (Attach Working File)
Doing the Big Joins (Attach)
Numerical Validation + Join Advice from a Professional
Answering a Query using a Union
Inner Join Query - Claim Category and Contact Availability
Duplicate Rows - Join Theory
Double Join Theory
Double Joins in Action
Introduction to Relationships
Joins vs Relationships
Many to Many Relationships - Book Borrow Example (Attach)
Blends vs Relationships
Cardinality and Referential Integrity
Assignment - Blends, Joins, Relationships
Assignment Answers - Question 1
Assignment Answers - Question 2
Assignment Answers - Question 3
Assignment Solution File (Attach Packaged Workbook)
I'd love to hear what you think
Section 2 Introduction
Parameters - Data Set Explained (Attach Data Set)
Intro to Parameters - What is a Parameter
Parameters using a Range
More Selection Options - List and Range
String Selector
String Selector Mixed with Aggregates
String Selector to Change Dimensions for Bar Chart
String Selector for a Dynamic Scatter Plot
Parameter Dates
Changing Date Granularity
Filtering with Parameters
Actions to Change Parameters Value
Assignment - Parameters
Assignment Solutions
Sets Introduction and Data Set Explained (Attach File)
Add to Set, Colour and Data Viz Concepts
Overlapping Sets - Combined Sets - Venn Diagram
Using Sets to Build a Crosstab
Modifying Sets - Adding, Removing - Aliases for Sets
Cohort Analysis - Tableau Online Quick Explanation - Real World Application - Combining Sets
Combining Sets and Parameters - If Functions - Vs. Actions
Dashboard Actions with Sets
Assignments (Attach File)
Assignment Solution (Attach File)
Level of Detail - Introduction (Attach File)
Data Set Explained - Level of Details Explained (Basic Explanation)
Writing the LOD Formula FIXED and Replicating a View
A Word of Warning - Always Build your Reference Table First to Generate the LOD. Then Build th
Changing the Order of Dimensions as well as Impact of Changing the View
Exclude Function Example - Comparing to Fixed
Include Function - Vendor IDs
Combining LOD Functions - Fixed and Exclude Together
Problem 1 - Number of Unique Vendors by Number of Claims per Vendor
Problem 2 - LODs and Finding the Minimum Date
Problem 3 - Categorizing Fees and VIsualizing Seperately - Fixed Function
Problem 4 - Preserving Percent of Total
Problem 5 - My First Day - Counting the Number of First Date Products by Ve ndor
Problem 6 - Relative Measures Comparison - Exclude Function with Parameters
Problem 7 - Average of the Maximum Value
Problem 8 - Performing LODs and Staying at Customer ID Level
Problem 9 - Customer Engagement Analysis
Problem 10 - Comparing to the Median of a Range of Values
Problem 11 - Insurance Renewal Rate
Problem 12 - Contribution to the Whole
Problem 13 - Program Snapshot Visualization
Problem 14 - Preserving % of a Whole
Problem 15 - Comparing nth Dates
Concluding Remarks for LODs
Further Feedback 1
Introduction to Analytics Pane
Getting Started - Data Set Explained (Attach)
Constants - Aggregations, Formatting, Application
Applying Lines to Table, Pane and Cell
Trick - Using If Functions to create custom constant values per pane
Recalculated Aggregate Reference Lines
Median vs Average
Quartiles Explained
Linking Parameters, Boolean Colours, Double Reference Lines on Scatter
Reference Bands and Distribution Bands
Box Plots
Totals for Crosstabs and Bar Charts - Dos and Donts
Working File
Getting Started with Trendlines (Attach Data)
Formatting Trendlines
Extending the TIme Horizon and Using Describe Trendline
Logarithmic and Power Functions
Forecasting - Basic Explanation (Attach Links to Documentation)
Clusters
Intro Dashboard Design Elements
Datas Set Explained (Attach)
Dashboard Planning
Pie Charts and How to Emphasize
Bar and Column Charts
Hierarchy Maps
Heat Maps
Line Charts
Area Charts
Tier Structure System
How to Lay Out Filters - Dashboard Actions
Assignment Time (Attach Packaged)
Assignment Walkthrough (Attach Packaged)
Tier System Assignment (Attach Packaged)
Tier System - Presentation Advice and Solution Explained
Tier System - Walkthrough Solution (Attach Packaged)
Objects - Tiles
Text Object - Trick for Consultations (MS Paint)
Object - Images (Attach Zip File)
Colour Wheel
Adobe Express
Floating Images
PDF, Image and PPt Download
Cross Tab Download, Tableau Public (Link)
Navigation Button and Navigation Menu
Blank Objects
Show and Hide - Filters and Dashboards
Mobile and Tablet Customized Views
Dashboard Design Assignment (Attach Packaged Workbook)
Dashboard Design Assignment (Solution. Attach Packaged Workbook)
Further Feedback 2
eBook Download - Tableau Visualization Design: 5 Common Mistakes That Kill Your Dashboard
“
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
“
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!
”
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!
”
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
”
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.
”
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.
