Language basics

• Dave Thomas - Programming Elixir (link)
• Bjarne Däcker & Robert Virding - The Erlang Handbook (link)
• Fred Hebert - Learn you some Erlang (link)
• Simon St.Laurent & J.David Eisenberg - Introducing Elixir (link)

OTP

• Joe Armstrong - Programming Erlang (link)
• Saša Jurić - Elixir in Action (link)

Running in production

• Francesco Cesarini & Stephen Vinoski - Designing for Scalability with Erlang/OTP (link)
• Fred Hebert - Stuff goes bad: Erlang in Anger (link)

Metaprogramming

• Joseph Wilk - defmacro (Mastering macros) (link)
• Chris McCord - Metaprogramming Elixir (link)

Phoenix

• Chris McCord, Bruce Tate, Jose Valim - Programming Phoenix (link)