Your books, CDs, DVDs and games all have a barcode, ISBN, or EAN. You can scan the barcodes using the app/your barcode scanner. Alternatively, type all of the numerical digits above or under the barcode into the search box, including any at the beginning or end of the sequence that may be smaller. Some books may only have an ISBN. The ISBN might be on the publishing details page at the front of your book. If it does not have an ISBN, then we cannot accept it.