Kindle - library books automatically are returned on their due date. Move other books to Archive by clicking and holding. You can retrieve from archive - I just haven't learned how yet = LOL. Got mine for Christmas. I bought Kindle Touch for DH and myself instead of Kindle Fire, because we have WiFi in our house and don't need the built-in capability - saves $50. Haven't learned a thing about apps yet. I love being able to check out books from my library without leaving my house.