As of January 1, 2007, only the 13 digit ISBN should be listed. If you have an old list of 10 digit ISBN numbers, we'll provide your 13 digit conversion when you place your bar code order with us.

Only the EAN13 should be on the back of the book. The UPC (Universal Product Code) should not be printed on any titles, frontlist or backlist. Again, if you only have a list of 10 digit ISBN numbers, we'll convert them to meet the new standards.

The suggested retail price should be embedded in the bar code as well as printed above the bar code. Major booksellers will not accept books with bar codes having the 90000 designation.