If you know in advance that you have only six hours to read, it’ll be easier to pace yourself. Remember, you’re going to read the whole book (or the whole assignment).In fact, the more directly and realistically you confront your limits, the more effective you will be at practically everything. Setting time limits and keeping to them (while accomplishing your goals) is one of the most important life skills you can learn. So never start to read without planning when to stop