ElixirSchool (self-published) (free)

Classing this as a free online book :003:

By Sean Callan with help from the community

Lessons about the Elixir programming language, inspired by Twitter’s Scala School.

Available in Việt ngữ, 汉语, Español, Slovenčina, 日本語, Polski, Português, Русском, Bahasa Melayu, Українською, 한국어, Italiano, Deutsch, বাংলা and others.

Your feedback and participation is encouraged!