First of all, I won't sell any books I buy, because when I read them, I will take notes on each book and underline good sentences and phonetic words I don't understand for later reading. How happy it is to see my notes several years later and remember the feeling of reading a book more than ten years ago.

Secondly, none of my books will be sealed in a box. I don't think I'll read it again if it's sealed, but I can't remember many important points when I read a book once, especially when I read a lot. It's very convenient to hold it on the bookshelf. You can take it out at any time if you want to see it, and basically forget it when it's sealed in a box.

Third, when friends come, they may flip through the books when they see them. Maybe it will attract some friends who don't like books and gradually make him fall in love with books. If he sees something he likes, he can lend it to him. This is a good cultural communication and has great cultural value.

Fourth, for children, old books at home will always be touched when they are placed on the bookshelf. Maybe an opportunity will make him fall in love with reading. What a wonderful cultural heritage!

Fifth, if you really don't want it, you can donate the immature books you bought in your early years to friends in poor mountainous areas. For children who love books, the value of a book is far greater than the pleasure brought by a children's toy.