Students should first do the diagnosis test. Find out their weaker areas. Then revise regularly for the individual review topics. Once you feel confident, you should do each practice test and monitor your performance. If you dont see yourself progressing then go back to the review topics and do the new test agin. Review topics are explained very well in this book. I am PhD qualified, highly experienced SAT tutor and most of my students find this book very useful. If you struggle to understand any answer in the book, feel free to email me at firstname.lastname@example.org. I am happy to provide FREE explaination. I wish you good luck!!!