List of Elixir books
github.com
github.com
The title is a little misleading as it contains other resources than just books (unfortunately missing http://www.redfour.io/ too)
https://github.com/melling/ComputerLanguages/blob/master/eli...
Also, stronger curation—Introducing Elixir is kinda old right? I'd put Programming Elixir instead of it.