Keeping textbooks

Do you keep your high school and college textbooks? If yes,it's really nice coz some of the youngster family members or friends could still use it for books can last for years.Now,I have many younger cousins who are in high school and in college who need some textbooks and I don't even have a single book to lend them.Some of them don't have a choice but to buy,they need it urgently at school.

Me,unfortunately I hadn't keep any single book.It's not that I lost them,the thing is I didn't have enough money to buy books before.I usually borrow in the city library or I photocopied the books.