If you want to truly understand Elixir, go through the book/site Learn You Erlang For Great Good. Understand it in Erlang, then apply it in Elixir. Once you get

If you want to truly understand Elixir, go through the book/site Learn You Erlang For Great Good. Understand it in Erlang, then apply it in Elixir. Once you get a feel for how to translate idioms from one to another, everything will be much easier, since you can turn to either community for information. You'll find that an undocumented library follows one of a small handful of designs and a quick peek into the source is all you really need. Once you get the Erlang->Elixir relationship, I recommend Erlang in Anger.