The recycling of second-hand books is generally around gold, ranging from 50- 1 yuan. In 20 18, the price of domestic waste paper rose, and the purchase price of waste paper was about one yuan, which also increased the recycling price of second-hand books. Second-hand books also need to be bought by yourself. Appearance, old and new degree, content field, type, second-hand books are generally sold in rural markets or retail in the streets of county towns. There are still many people who like second-hand books. After all, it is cheap, and the original books are all around tens of yuan. It can also be processed on the squirrel book delivery platform.