Also note that a secondhand book isn't a perfect substitute for a new books. Some people don't want to own second hand books, and many people don't want to give

Also note that a secondhand book isn't a perfect substitute for a new books. Some people don't want to own second hand books, and many people don't want to give secondhand items as gifts. On the other hand second hand books often get resold several times. When I was a student and bought secondhand books regularly it wasn't unusual to buy a book that already had several second hand book stores stamps on the first page, a book that I would end up selling myself at a later time.