Hi. I want to find out what purpose should i have in order to absorb everything useful(which will appear in the exam) from a text book.
My current purpose is - "I am now going to absorb Chapters e.g.5-6 from this e.g. History for my upcoming History exams."

Is that good enough? Or do I need a better one?

Please reply as soon as possible cause exams are just a weeks away.