Why are there more books above 40 yuan? I mean, for several reasons. The first reason is that few people read books now. Purchasing power has declined. Nowadays, many people need to read e-books or consult materials directly. Just search on the mobile phone and it came out. There is no need to buy books at all. Well, books are usually made of wood. Trees in our country are very scarce now. Now many farmers are required to retire and return farmland to forests. So the precious place should be in this respect. The third is from environmental protection. You are the overall price increase. Generally speaking, books are expensive for a certain reason.