We are always happy to add books without ISBN numbers if a member wants to index them. We cannot add to the Library all books without ISBNs as we have to manually add each book and we don't have the resources. But if you want to index it, mail us at [email protected] with title, sub-title, author, publisher, country and date of publication, # of pages, format and if possible, a scan or photo of the cover (don't worry about cropping or sizing as we can do that for you).