Effective reading requires not only "reading between the lines," but also "writing between the lines. " There are two ways

Effective reading requires not only "reading between the lines," but also "writing between the lines. "
    There are two ways in which one can own a book. The first is to pay for it. But the act of purchase is only the prelude to possession. Full ownership won’t come unless you have absorbed the ideas to do you any good.
    There are 3 kinds of book owners. The first has all the standard sets and best-sellers—unread and untouched. The second has a great many books, all of which as clean and shiny as the day they were bought. The third, however, has a collection of books that are all dog-eared and dilapidated.
    Marking up a book is indispensable to reading. First, it keeps you awake. Second, active reading is thinking, which expresses itself in words.  Finally, writing helps you remember the thoughts you had or the thoughts the author expressed.
    Light fictions like Gone with the Wind do not require active reading. They can be read in a state of relaxation. But great books cannot be read while you’re asleep.
    There are a number of devices for marking a book intelligently and fruitfully. For example, underlining, vertical lines at the margin, stars or asterisks at the margin, numbers in the margin, numbers of other pages in the margin and circling of key words or phrases.