If you’re coming from Ruby, I highly recommend Dave’s Programming Elixir (Pragprog) (PE) and @sasajuric’s Elixir In Action (Manning) (EIA) and read them as I did - see my reviews in their respective threads for details.

You will probably also want to read Programming Phoenix (Pragprog) (though I’d wait for the 1.4 version - that’s what I’m doing) and then Functional Web Development with Elixir, OTP, and Phoenix (Pragprog) (I might be starting on this myself soon).

I highly recommend PragDave’s course as per @Architect’s post above too (after PE and EIA) - I LOVED this course (again, see my review!)

There are also lots and lots of other awesome Learning Resources > Books and Learning Resources > Courses too - check out their threads and the reviews in them

Welcome to the community! I’m sure you’ll love it here

Phoenix does not really need more knowledge than this… If You come from Ruby/Rails You will find a lot of similarities, plus socket and channels which replace actioncable.

I would wait the upcoming Programming Phoenix 1,4, which should be available soon (maybe one month?!)

But if You want to expand your application with Elixir, I would recommand You to learn OTP.

I liked Elixir in Action a lot. There is also Programming Elixir 1.6, Phoenix inside out, etc.

You might like also Erlang books… but that might come after.

I also recommend this course: