Ideas for second-hand bookstore

[zivile132]

Hello, I would like to ask for your help. I represent a second - hand bookstore and we want to organize as many social projects as we can, but we need all kind of ideas, this is why I am here. We already did one project - people gave us old books and we plant trees in return or we created mini libraries in hospitals. Maybe, you can suggest something else? Every idea of project or event is very welcome. Thank you!