I only act as a hobby but I really enjoyed this book by Michael Caine -
https://www.amazon.com/dp/B00CKNWAM6/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1
And of course Stanislavski -
https://www.amazon.com/gp/aw/d/1780938438/ref=tmm_pap_title_0?ie=UTF8&qid=&sr=
Good luck!