I’ve been learning Elixir / Phoenix from ElixirCasts but trying to find more well-rounded knowledge on things like OTP and Phoenix. Are there online resources or books I should look into?
elixir-lang.org Getting Started Guide is very well written IMO. They have also listed all the resources and books in learning page: Learning resources - The Elixir programming language
Have a look at this topic:
I’ve had some good success just browsing the docs:
I’m intermittently reading these docs while following along with the tutorial at Introduction to Mix - The Elixir programming language and it is all just making perfect sense!