Where can I find a good tutorial on three.js, and is it worth learning?

Question

JavaScript

Good video tutorials and articles in Russian on three.js are needed;
And I would like to hear (i.e. read) why it is worth learning three.js. I would like to know the opinion of those people who already have knowledge of this technology;
Personally, I'm going to use three.js to implement 3D landings (I think it will look very nice).

Answer 1

3D Landigs?! well, an example would be ....
And my smartphone will not be discharged in the first 30 seconds of rendering such a landing?