It depends on your review plan. The instruction handout of advanced mathematics should be detailed, and you can review all the knowledge points of advanced mathematics you have learned. So the foundation is not very solid, there is plenty of time, and you can choose. Just like the exercises at the back of the textbook are unnecessary, some basic people don't do it when they think they understand it, and do more on unfamiliar knowledge points. "Review Book" pays more attention to the examination, pays more attention to the key points, and emphasizes that it conforms to the style of examination questions over the years. This is quite intensive reading, with a good foundation, and there is not enough time to read this book.