Elixir in Action seems to be the go-to choice these days.

To re-enforce the previous recommendations, Elixir in Action is a no-brainer.

If you haven’t already, Start Here. It’s feeling more and more like a meme to say this but Elixir’s GUIDES (not docs) are really, really good (the docs are also really good but they are for reference once you’re comfortable). If you haven’t already, read everything and work through the exercises… really.

I would also recommend reading/watching anything by Joe Armstrong. As far as tech people go, he is one of the most endearing and hilarious people that has just enough of an edge that you won’t evangelize him as infallible (if you are prone to such things). You’ll learn a lot of really important context as to why the BEAM is designed the way it is that generally isn’t well-captured in Elixir texts.

“The Forever War” by Joe Haldeman.

…oh right, we’re talking about Elixir. I’d say “Metaprogramming Elixir” is pretty good if you want to dig deeper.