I don't think that is possible at all but there are other apps available that you can catalogue the books that you have. Book Crawler and Bookshelf are 2 that I know of. They both have lite versions for free that you can try to see if you like them, although they will only catalogue up to 25 books. I have Book Crawler, you can input your books manually or by bar scanner of the ISBN. very useful if you don't want to double up on books that you buy. You can also install on your iPhone and sync through Dropbox. There is also a web based company offering the same thing for free, although the name of that eludes me right now. Hope that helps.