Can I add cookbooks that do not have ISBN numbers? We have recently added a new feature which allows you to add any book to the EYB Library. Please see further details here. Related articles NEW FEATURE: Adding a Book to the EYB Library I keep my cookbooks in two different locations - do I need two Bookshelves? Can I get a book added to the EYB Library? Adding books to your Bookshelf Can I view another member's Bookshelf?