How do you improve accuracy in studying?

Hector Q.
I take notes. Instead of just reading, I highlight on my kindle or book and then I consolidate the things I want to really remember so that I can go back over them again. I'm have visual memory so when I write s I write something whether it's a song or a phone number I remember seeing the information in writing. I have always used that method to study for tests. I did well in college.