University libraries usually have the book Super Memory. You can read this book. It's very good. Rousseau once said: Learning is memory. Although this sentence is not completely correct, it also shows the importance of memory in our study. I used to envy those who read ten lines at a glance and then recited them backwards. After reading this book, I feel like this. Everyone can do it as long as they practice hard. If the memory method can be applied to learning, the effect can really be said to be devastating.