Do you write up your books once you've finished reading?

So I have 'just started reading'. After a lifetime of being dyslexic and thinking I disliked books, I've realised that if I find something in my wheel house and with a little perseverance of getting over the inital hump, I'm really enjoying it. However a few months after reading a book, I've kind of forgotten the finer points and details I enjoyed. Does anyone write up books they've read and what tips have you got/do you have any templates?