ISBN/External Links


 * ISBN Barcode
 * ISO 2108:2005 at www.iso.org
 * Brief Summary of ISBN
 * How to find a book from Wikibooks
 * ISBN to EAN EAS EBS transition isbn.org
 * Description of the ISBN to EAN upgrade process bookweb.org


 * National and international agencies
 * International ISBN Agency—coordinates the worldwide use of the ISBN system.
 * ISBN agency for UK and Republic of Ireland
 * ISBN agency for US and Puerto Rico