The Pragmatic Studio offers a beginner-friendly yet surprisingly in-depth into Elixir and OTP. It starts out with the basics (i.e. variables, datatypes, etc.) and walks students through building a Phoenix-like web server. The end of the course dives into processes and OTP. The course is a good introduction of Elixir but is also helps seasoned Elixir developers strengthen their understanding of what is one of the best and most exciting programming languages out there today.