In his book ?kitaab ul-ilm? the shaikh, rahimullaah mentioned 3 points on how to utilise books. Here are the titles for each point, which can be referred to for details [pages 87-89].
1-knowing its content
2-knowing its terminology
3-knowing its style and mode of expression
then he mentions that the study of books may consist of either two points [89-90],
1-to read carefully with reflection and trying to understand or
2-to find a certain piece of information [by going through the book quickly to see what it contains]
then he mentions [89] how important it is for the student of knowledge to collect books starting with the most important ones in relation to their subject. Aboo ubaidah