To request that a book is added to the Library, you need to import the ISBN using the Import Books feature (select from your My Bookshelf drop down at the top of the page) - just enter the ISBN into the Import box and click Add Books. If the book exists in the EYB Library it will be added to your Bookshelf immediately - if not, we download the information from Amazon, this is usually within 24 hours and it is automatically added to your Bookshelf.
If it doesn't exist on Amazon, or if Amazon neglected to add a food or drink tag (a requirement we had to add as some new members imported their entire book collections), then it cannot be added that way. In that case you need to add the book data yourself using our new Member Added Books feature which you can read more about here in Help.