This is how I learned C++11. I didn't fully understand move semantics and smart pointers until I read the relevant chapter from 3 or 4 books. Whenever an inter/co-op student joined I'd have them read the specific chapters from multiple books plus a good article on smart pointers before having them touch any code. All during working hours of course.

I'm learning Rust now and feel like I need to do the same thing. Read "the rust book" plus Rust by Example plus one or two Rust books on the O'Reilly website. It takes a lot longer to read multiple books in parallel but I find I remember better this way.