@M_Dolega

It's one thing to know Dax, the other to be able to explain it  so your grandmother can understand it  This guy is no doubt a GREAT TEACHER!

@UlyssesHaq

Ive been studying and applying DAX for almost 2yrs, and this introduction is STiLL so inspirational. The learning continues, and its a joy. Thank you.

@New2you09

I find the format of this video to be incredibly useful: working through a scenario exploring different methods. Pls do more like this.

@caterinagentili1034

Love how Alberto teaches: Example > Problem > Theory explaining the problem > Solution > Theory explaining the solution. This way you'll remember why you are doing what you are doing and HOW to solve issues.

@joaorataoo

I've watched Mastering DAX twice and I've always learned something new.
I still have many doubts about DAX and I still struggling to learn it, but when someone comes to me and ask me for some advice how to learn DAX, I always tell to study the theory first.
In my opinion there are no shortcuts on learning DAX.

@zhengxijiang4087

20:00 FILTER( table, filter expression).  Filter() creat a row context, we need to use nevigation function related()
22:30 filter context, measure caculation is always under a filter context.
24:50 CACULATE() works with filter context, not row context, it does not need RELATED() kind of nevigation funcions.

@Pikachu_annoiato

Yeah, I live in Italy for a while. Grate respect for telling "it is more important to  simply think and find solution and do not try to choose solution between existing ones"
Thanks for the video!!!

@Mrglasshalfempty

This is a masterful video. I can't imagine how much work, time, and intentionality went into getting this exact scenario to showcase all the ins-and-outs of the solution.  Absolutely excellent in every way, and I cannot thank you enough!

@JohnSullivan1

I feel like I learn Dax just by watching Alberto's hand gestures. 😂

@brianmullins8444

I love these long-form videos! There's so much more to learn here than just the DAX functions and syntax, and even theory. I love watching the methodical stepping through from start to finish, seeing the solution evolve along the way. Using summarize to check mid-stream results is brilliant, and it is my big take-away from this one. Probably seen it done a million times, but today it struck home. Thanks!

@omenaokoro4693

Marco is proof that the world needs more gifted teachers. His ability to explain the theory of DAX and then translate it to practice is so much appreciated. I get DAX every time I listen to him: breaking down the logic, building the model and validating the solutions... Love it.

@supersql8406

That explanation of how to use the measure vs calculation between column aggregation vs row by row iteration was superb! I have a much better understanding why I had so many issues before because I didn't quite understand that concepts. Thank you!!

@thierrythomas6640

Even I read Dax guide and watched Mastering Dax, I still learn with your videos.
Thanks a lot…

@laurayork6530

Amazing teacher.  This is only my second video that I watched from him and I love the detail he provides on each segment!  Outstanding job!

@bedadhalathirumaleswarared8134

I enjoyed a lot more DAX concepts and problem solving techniques and tools  in one video.

Can you please do these kind of video series regularly. 
Thank you so much Albero Ferrari.
I am big fan of you.

@danishkhatik3955

You're the excellent dax tutor on YouTube
Thanks for making this content

@bhakthasingh8198

Mr Ferrari, Every single video of yours is so helpful, eye-opening and inspirational.

@Cesarooo2010

No idea what to say Alberto. Im really happy to learn from you. One of the best videos. End to End and easy to understand. A pleasure as always! Mille grazieeeeee. Greetings from Germany!

@felipesignorellireis7839

Loved this class. Do more like this Alberto. Very very good class. cheers from Brazil.

@kostaskolotouros4345

What can I say... The way you explain the concepts is just incredible! Thank you.