Programming Elixir teaches you the language - how you apply it is either down to you (based on your experience, perhaps specifically, in designing concurrent/parallel systems) or, based on what you learn next. Luckily, there’s a lot of material on the latter!
I have currently read/done:
And loved every single one of them (check out my reviews in their respective threads). Dave’s course shows you how to apply Elixir - and it is one of the best programming courses I have ever done!
There are other books and courses that show you how to ‘think’ in or get the most out of Elixir too, have a look through our Books and Courses sections