Seriously, the Elixir documentation should be considered the gold standard. Almost everything is documented with exactly what kind of situations the library/module/function should be used for, combined with illustrative examples showing how it should be used.

IMHO many function docs could have more examples.

Especially for a dynamic language which uses tuples/maps for a lot of arguments.

Coming from Erlang to Elixir - I find Elixir docs lacking in both coverage and terseness.

I could agree. Coming to Erlang from Elixir, I truly appreciate the simplicity and small size of the Erlang language. Making it possible to write exhaustive documentation. In fact, in Joe's book he defers a lot to the online docs/manual for in-depth treatment of a lot of topics.

While you might be right, I dislike the style of Erlang docs.