(logistics) A series of precisely printed parallel lines and spaces of varying widths used to represent data when “read” by a barcode scanner. Barcodes are used in many applications in industry to identify products, shipping units, assets, locations and services at every stage in the logistics chain. The most commonly seen are the EAN barcodes printed on virtually every commercially distributed product in the world from books to packaged food. If you have a World Trade Press edition of this book (all are published by World Trade Press, but thousands are sold in bulk with custom covers), you will see two barcodes on the lower right corner of the back cover. The one on the left identifies the ISBN (International Standard Book Number) while the one on the right identifies the price. See barcode character, barcode scanner, European Article Number Association International (EAN).