The best data visualization courses (2026)
Power BI for free: Microsoft Learn. Tableau with a Google certificate: Coursera. Choosing the right chart, and making it with code or an agent: Hey Maestro.
Published by Hey Maestro, which sells some of the courses compared
In this guide
- How to choose
- Microsoft Learn: best if your company uses Power BI
- Coursera: best for Tableau and a Google certificate
- DataCamp: best for practice inside a larger catalog
- Hey Maestro: best for choosing the chart, then making it with code or an agent
- Frequently asked questions
- How this guide was made
- Sources
| Option | Price | Length | Practice | Tutor | Refund |
|---|---|---|---|---|---|
| Microsoft Learn: Prepare and visualize data with Microsoft Power BI | Free | About 8 hours | Reading, exercises and assessments | Microsoft Q&A forum | Doesn't apply: it's free |
| Coursera: Share Data Through the Art of Visualization (Google) | Free to enroll with limited access; the full course and certificate come with Coursera Plus, $59 a month or $399 a year | 4 modules, about 2 weeks at 10 hours a week | Tableau, videos and graded assignments | Coursera Coach, an AI assistant, in many Coursera courses | Coursera Plus: 7-day free trial on the monthly plan, 14 days on the yearly plan |
| DataCamp: Introduction to Power BI | First chapter free; Premium from $11 a month, billed yearly | About 4 hours | Exercises in the browser | AI Tutor format that comments on each answer, with an Individual plan | Its terms offer no refunds on individual plans |
| Hey Maestro: Which chart should I use? and A Dashboard People Actually Use | Free, both | 4 modules each, 13 and 14 pages | Charts and dashboards you edit and draw on the page | AI tutor that answers from the page you're on | Doesn't apply: they're free |
| Hey Maestro: Effective Data Visualization with Altair | $30, one-time, in presale | 12 modules that open as they're released | Altair (Python) charts and a portfolio piece from your own data | AI tutor that answers from the page you're on | 7 days, in full, for any reason, presale included |
| Hey Maestro: Data Viz Co-Pilot | $49, one-time | 4 modules, 20 pages | Charts made with an agent, plus the style guide and skills it works from | AI tutor that answers from the page you're on | 7 days, in full, for any reason |
Checked on November 12, 2026, on each platform's own site. Prices are the ones each site shows from the United States. Length is given in the unit each site publishes.
How to choose
Decide whether you need to learn a tool or learn judgment. Power BI and Tableau courses teach where the buttons are. The harder part, choosing the chart that answers the reader's question and spotting one that misleads, carries over to any tool, including an AI that draws charts for you.
Microsoft Learn: best if your company uses Power BI
This free path takes about eight hours and goes from preparing data to building reports in Power BI. It's the natural start if Power BI is already on your computer at work.
Coursera: best for Tableau and a Google certificate
Share Data Through the Art of Visualization is the sixth course in the Google Data Analytics Certificate. It teaches Tableau and how to present findings, over about two weeks. It suits someone working through the full certificate toward a first analyst job.
DataCamp: best for practice inside a larger catalog
Introduction to Power BI is about four hours of short exercises in the browser. It makes sense if you already have, or want, a DataCamp subscription for other data tools.
Hey Maestro: best for choosing the chart, then making it with code or an agent
Two free courses cover judgment: "Which chart should I use?" teaches you to pick a chart from the reader's question and to catch the cut axis, the dual axis and the average that hides; "A Dashboard People Actually Use" teaches you to build one someone opens every week. "Effective Data Visualization with Altair" ($30, in presale) teaches charts in Python through Tufte, Cairo and Lupi and ends with a piece from your own data. "Data Viz Co-Pilot" ($49) teaches you to write down your taste so Claude makes charts your way.
Frequently asked questions
Which data visualization course is free?
Microsoft Learn's Power BI path is free, and so are Hey Maestro's Which chart should I use? and A Dashboard People Actually Use. Coursera and DataCamp let you start for free and charge for the full course.
Should I learn Power BI, Tableau or code?
Learn the one your workplace uses. If you're choosing freely, code (Python with Altair, for example) gives you charts you can repeat and review, and it's what AI agents write when you ask them for a chart.
How this guide was made
Each option was checked on its own site on November 12, 2026: price, length, language, how you practice, what help is available and the refund policy, citing each platform's terms where they exist. Length is given in the unit each platform publishes: hours, weeks or, on Hey Maestro, modules and pages. Hey Maestro publishes this guide and sells some of the courses compared, so each section says who each option is best for, including the ones that aren't Hey Maestro's. If something has changed, write to hola@heymaestro.app and the guide will be corrected.
Sources
- Microsoft Learn: Prepare and visualize data with Microsoft Power BI (length from Microsoft Learn's official catalog)
- Coursera: Share Data Through the Art of Visualization, Coursera Plus pricing and terms
- DataCamp: Introduction to Power BI, pricing and terms of use
- Hey Maestro: Which chart should I use?, A Dashboard People Actually Use, Effective Data Visualization with Altair, Data Viz Co-Pilot and terms, with the refund policy
Try a free course before you choose
Every free Maestro course reads in full without an account, so you can see how one teaches before you pay for any course on this page.
Free courseWhich chart should I use? Choose and read charts that tell the truthBy the end, you pick the right chart for each question, read any chart without being fooled, and can explain what's wrong with one that misleads.Start reading