舊書不捨得丟怎算?捐去圖書館是否一定會

1. Recycle.

2. No. A success of a library depends on its number of patrons. So library must periodically update its collection to attract readers.

This is the exact reason why libraries prefer cash donation (for new materials) rather than book donations.

Beside - due to copyright issue, the library may not be able to rent the book out.