But this skill is not one that most people can pick up incidentally, though some people do. Most of us need to exert a conscious effort to achieve it, and the help of a teacher. To acquire it, pupils have to read with a clear idea of what information they are looking for; it must be some detail or definite fact at first; and so they have to learn to search for the information with a question always in mind as they are reading. For instance, as they read, they might keep on asking themselves a question in order to be on the alert to find the answer. This may prevent their own personal interest and pleasure in what they are reading from holding all their attention, for they may have to read through several pages rapidly, or even a whole chapter, before the answer is complete enough. Later, they will have to learn to find the solution to a problem: this is more difficult, because they cannot be so sure what the right solution will be ; and a problem for the older pupils will often be complex, and its solution may have to be collected point by point from several chapters. It would be a great advantage for the most advanced pupils if they were trained to collect information from several books.