Barely computer literate MAC user. I have several thousand books in Calibre, and I need to make a backup on the cloud of all my books. Caught out with Apple removing Marvin from App Store and don't want to wake up one day and find out my books are lost because something happened to Calibre. So I guess I need to back up my library to a cloud based platform. Should I just buy Dropbox storage, create a folder and upload everything? I know you geniuses have this problem solved already. Thanks for helping. Linda
