What is the procedure for uploading if you have a large # of volumes by the same author? Some time back I downloaded all the books by W.H.G. Kingston that I could find over at Gutenberg. I have cleaned all the Gutenberg text out, put on a different cover image and converted them to Mobi/kindle format. There are 123 volumes in all. Can they be loaded as zip files or is it necessary to load each one into an individual file?