Read a book for enjoyment and then read it as a writer. That’s not always easy to do, but it can teach you a lot. Let’s say you find a section that doesn’t quite fit with the main theme of the book. Why is it in there? Did the publisher say the book was too short? Ask yourself why a book begins where it does. Why did the Godfather begin with a wedding?
Read a book twice or at least put on your writer glasses and analyze a book when you finish it.