1, which can be used for collection. Some old books have collection value, especially academic books, or books published by famous publishing houses, including books by authors with very background, which can be collected and not sold;

2, it can be used for reading, it is a pity to throw away old books directly, and it can be exchanged with other people's old books. There are many connotations and essences in the book that can be intensively read, and at the same time, the reading volume can be increased;

3. You can donate. Many books have no collection value, and you don't want to throw them away directly. You can let more people read old books. You can donate all the old books to Hope Primary School, local library or some colleges and universities, which can benefit many people.