Originally Posted by davidfor
Also, if you don't want to add the epub to calibre, you can create an empty book. This is a book in calibre with all the metadata, but no actual ebook. If the book has the same title and author as the kepub, will match with the kepub and sync the series info with the device. An empty book is also handy for tracking paperbooks or wishlist items where you don't have the ebook.