Soon I'll be reading a lot of books on science-related topics and I don't want to forget them afterwards

So those books are about science but written in a more populistic way (I’m not a native English speaker, sorry for weird wording) so basically I want to remember general ideas, but sometimes dive into the details. There are a lot of books (at least 40) and I need your help in memorizing them at least on somewhat decent level. Basically I need to know where can I get more palaces and what methods are good for memorizing books in general. Sorry if something like this was posted before, I’m new to the forum.