The slogan that old books are used?

We can exchange books, reuse old things, and make old books play their role.

Between friends, colleagues, and friends of reading and writing groups, in fact, many people will have many books that they no longer need. At this time, if you can launch a second-hand book exchange activity, you may be able to find your favorite books without spending money. Replacing "old" with "new" not only solves your old books, but also finds the books you want to read, which is really a very cost-effective thing.