YES! to concise examples. In (what seems like) a former life, I got excellent mileage out of the Perl Cookbook and something along those lines for Erlang would be hugely helpful at times. For example, the crypto module is well documented but (and I admit to some ignorance here) not easy to use. A few recipes for common use cases would be invaluable.
More generally: there are excellent references about beginning Erlang programming; a book targeting some of the hairier corners (rebar3, mnesia administration, effective error logging) that are a concern to working programmers would be fantastic. Of the available books, I find Cesarini and Thompson’s Erlang Programming to be along these lines but getting a little out of date.