Power BI for Beginners: DAX, Data Modeling & Data Visualization

Learn to clean, model, and visualize data in Power BI with hands-on tools to create clear, interactive reports.

Power BI for Beginners: DAX, Data Modeling & Data Visualization

Power BI for Beginners is your step-by-step introduction to turning raw data into interactive, easy-to-read reports using Power BI. Designed for students, professionals, and anyone new to data, this class helps you gain real-world experience with cleaning, modeling, and visualizing information.

You’ll start by learning how to import and clean up your data using Power Query, removing duplicates, fixing missing values, and merging data from different sources. You'll also explore tools like unpivoting columns and creating custom or conditional columns to prepare your data for analysis.

Next, you'll connect multiple tables by building data models and using relationships. You'll also work with DAX (Data Analysis Expressions) to calculate values using functions like SUMX and CALCULATE. For quick results, you’ll try out Quick Measures to simplify common calculations.

After shaping your data, you’ll learn how to build eye-catching visuals, such as clustered columns, matrix tables, and gauges. Filters and slicers will help you focus on your reports and tell a clear, engaging story to your audience. To wrap up, you'll publish your reports to the Power BI Service so you can edit, share, and collaborate online.

This beginner-friendly guide is perfect if you're ready to turn data into smart decisions with easy-to-use tools and visuals.

In this course, you will learn:

  • Import data from various sources using Power BI tools.
  • Clean messy data by removing blanks and duplicates.
  • Use Power Query to transform raw data into a usable format.
  • Combine multiple tables into one for simplified analysis.
  • Merge related tables to connect and organize data.
  • Unpivot columns to make wide tables easier to analyze.
  • Create new columns with examples or conditional rules.
  • Add custom columns using formulas based on specific logic.

Course Format

  • This is a video-led course. You can preview some videos below.
  • This course includes instructor files and practice exercises.
  • This course is aimed at Microsoft Power BI users.

Course Certificate Included

This course includes an optional online quiz that will generate a course certificate upon completion.

14-Day Guarantee

We offer an unconditional, 14-day, full money-back guarantee, no questions asked. This is our way of ensuring you have complete confidence in your Stream Skill purchase. If you don’t learn, you don’t pay.

Why Trust Us?

Stream Skill is part of the Simon Sez IT family and has been in business 14+ years and taught over 1 million students in that time. We’ve created over 130 software training courses, 8,000+ video tutorials, and we’ve helped thousands of people across the world learn how to use Microsoft Office. We’ve now created Microsoft Excel courses for the last five versions and continue to help people get to grips with this essential tool.


Your Instructor


Simon Sez IT
Simon Sez IT
Simon Sez IT makes business and technical software simple to learn.

Our most important goal is to help learners build and strengthen your software skills. We focus on simplicity but explain things in the detail they deserve. Simon Sez IT subject matter experts bring passion, knowledge and practical insights to video-based courses and practice exercises – all designed to help learners immediately apply your new knowledge and master your learning goals.

This is why more than a million learners have relied on Simon Sez IT since 2008.

Course Curriculum


  Section 1: Power Query Fundamentals
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  Section 2: Data Modeling
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  Section 3: DAX and Measures
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Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 14 days and we will give you a full refund.
Can I try a course I'm interested in before I purchase a course or membership?
Absolutely. The first set of videos for each course is free. Our thinking is that this allows you to hear the teacher's voice and see the visuals. To watch a free video, just click onto the course of interest. Then click the video lesson that has the “Preview" button.
What if I have questions or problems while I'm watching my tutorial?
Should you have any problems using the system, we offer free technical support to customers. Just send an email to [email protected] and we will respond promptly.
Can I get my money back if I'm not satisfied?
We offer an unconditional 14-day full money back guarantee – with no questions asked. As a result, you can rest assured that you can make your purchase in complete confidence. Our motto is “If you don't learn, you don't pay." Thanks to our 14 days risk-free offer, you can test-drive a course and make sure it's what you had in mind. We are committed to your total satisfaction!
If I register for a monthly or annual membership, will my credit card get charged automatically at the end of each pay period?
If you sign up for a monthly or annual membership, your subscription will renew automatically. Customers are welcome to cancel their recurring subscription at any time.
Will your videos work with Mac computers?
All of our courses are compatible with both Windows (PC) and Mac computers.
Will your videos work with iPhone, iPads, and Android devices?
All of our courses are compatible with iPhones and iPads and most Android devices. If you are looking to confirm that it works for you, feel free to view the free preview videos offered for each course.
Can I view your online training from any computer?
Any computer or mobile device with an Internet connection can be used for our online training courses.
Do you offer any online quizzes or testing tools?
Yes. The course tests can be used as testing tools or to earn a Certificate of Completion for a given course. The Certificate of Completion can be earned with a passing grade of 70%.
Do you offer Certificates of Completion?
Certificates of Completion are automatically generated when you complete a course, and the Test Certificates are offered as part of the online test/quiz, which accompanies the course. You will need a passing grade of 70% in order to receive a Certificate. The quizzes are based solely on course content.
Do you offer discounts for non-profits or educational institutions?
Yes, we offer 20% off discounts to non-profit, educational, and government agencies. Contact [email protected] for more information.
Where is Simon Sez IT located?
Simon Sez IT is located in sunny Florida, USA.
How long have you been in business?
We started our company in 2008 with our first course for Excel 2007. Since that time, our company has published over 180 courses. Our training is used in over 180 countries worldwide.
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