What book/course would you recommend for learning joomla?

Question

Joomla

I want to learn joomla. What book/course would you recommend for joomla?
I want to understand where to find this or that html page in order to edit it.
I want to learn how to work with the admin. It is easy to navigate where and what files should be in the folders of this CMS

Answer 1

book? Well?
What's wrong with the official documentation?

Answer 2

1. Of. documentation in Russian (by sections): here
2. Here is a book in Russian. (z-noise)