The book Programming Ecto [1] also has a chapter on application design which talks about contexts.

[1]: https://pragprog.com/titles/wmecto/programming-ecto/

I have that book too and it's great. Will have to check out that specific section. I mostly used it to see examples and explanations of how to do things in the Ecto DSL (which it is great for).

Yes, I read and can recommend that book as well. I wanted to get the little OTP guide too, but people say it's outdated.

Apart from books and forum though, there are many posts online! You can check ElixirStatus[0] or a new initiative called Beam Bloggers Webring[1].

[0] https://elixirstatus.com/ [0] https://beambloggers.com/