Ask HN: What's your method for self-studying coding books efficiently?

Hi HN,

Lately I've been reading multiple programming books at the same time on separate languages and libraries.

I find that even though I read and complete the exercises, I'll just end up forgetting a command or recipe for some task.

Paper notes take too long but they do help me recall better. Doing projects helps but I still end up forgetting as I switch over to another language. I'm trying notes in Jupyter notebooks now so we'll see how that goes.

What's your method for studying coding books efficiently?