Let me suggest a proven method of reading. Never plan to read an assignment only once; good readers will read at least twice and usually three times. The first time through should be a quick and casual reading to familiarize yourself with the material and find out the main point(s) the author intended to communicate. The second time through you should take notes for yourself, attempting to outline (roughly) the material presented so that the way in which the author gets to his conclusion is made clear; also write out important lists which may appear in the reading, along with key sentences which express important insights or necessary declarations (as far as the author is concerned).
Only after these two steps have been accomplished should you go through the assignment again the third time and underline (or highlight) the words, phrases, or sentences which will help you to review and recall the material later. Keep these underlinings to a minimum, for too many such markings will simply force you later to reread most of the assignment again – which defeats the purpose of underlining. By the time these three steps have been completed, the reading assignment will be clearly recorded in the mind.
HT:CMF