Wednesday, April 9, 2008

Barcodes and Books

Barcodes and Books

How a book is identified depends somewhat on when and how it was published. Many books have got no identifying numbers. There are two common barcoding systems used on books. The four most common Numbers are the EAN (European Article Number AKA International Article Number), the ISBN (International Standard Book Number and earlier the Standard Book Number), the UPC (Universal Merchandise Code) and the Library of United States Congress Catalog Number. Of these numbers, only the EAN and UPC can look as barcodes.


Newer books should have got an EAN. There are two word forms in common usage: the EAN (which is 13 figures long) and the EAN + 5 (18 digits). In the latter case, the last 5 figures codification the currency and price. The EAN is often on the interior of the presence screen of a book.

The first subdivision of any EAN barcode is the EAN. The first three Numbers are the state code. If the first three Numbers are 978 or 979, this states us this point is from "Bookland," which is the fanciful state that all Books come up from. The adjacent nine Numbers are the ISBN (International Standard Book Number) and a checksum. The 2nd subdivision of the barcode states us the price. The first figure is the currency, the other four are the price.


ISBN designation (International Standard Book Number) was implemented in 1970. [The earlier Standard Book Number was used from 1966 to 1974]

ISBNs have got either 10 or 13 digits. This is an illustration of an ISBN: ISBN 0-812-50394-5

A 10-digit ISBN can be converted to an EAN by adding the "Bookland" prefix 978 and changing the last figure to the new checksum. (No old ISBN translates to a 979 Bookland code. Also, a 979 EAN is the ISBN. And there is no 10 figure version. Only the 13-digit EAN/ISBN volition look as a barcode, never the 10-digit code.

On some books, the ISBN will be coded with a two-height barcode, similar to the United States Postal code.

Price Point UPC

North American books also utilize the UPC (Universal Merchandise Code) system. Most often (always for aged paperbacks) if there is a barcode, it will be the Price Point UPC. The first subdivision is the UCC (Company Code), the last subdivision is an point number. Unfortunately, the terms is smack in the middle! Which means, when the terms changes, the UPC changes. In technical footing this system is "really stupid!" As of 1 January 2007 its usage was discontinued, but there are many books out there with this type of barcode.

You can acknowledge a Price Point UPC by that price-in-the-middle feature. Also, the little 5-digit add-on incorporates portion of the ISBN. If you see a Price Point UPC on the dorsum of the book, bank check to see if it have an EAN as well. (The EAN is often on the interior of the presence screen of a paperback book book) The EAN is much easier to work with.

About the barcodes themselves

The EAN and UPC usage the same barcode font. Each fictional character is expressed in four bars. The parallel parallel bars can have got one of four breadths and both the dark and visible light bars count. There are barcodes where the achromatic space doesn't transport information, in this lawsuit it they matter. If you delegate the Numbers 0-3 to each barroom width, you'll happen out that each character's parallel bars will number 7. This is portion of the mistake checking.

Both EAN and UPC codifications incorporate further mistake checking in the word form of a bank check digit. This is the 12th fictional character in a UPC and the 13th in an EAN.

Other Codes

Large retail merchants happen it utile to make their ain inventory-tracking systems, using barcodes that associate to Numbers in their cardinal computer's data-base but not necessarily to the human race outside. They can publish up spines with a barcode fount that their computing machine understands, but no 1 else can. Some of these barcodes look like EAN or UPC because they utilize the same fount UUC128, some usage completely different founts and coding.

Book that don't have got a barcode, how to add one

Look on the dorsum of the statute title page for the ISBN. ISBN designation (International Standard Book Number) was implemented in 1970. A 10-digit ISBN can be converted to an EAN by adding the "Bookland" prefix 978 and changing the last figure to the new checksum. http://www.isbn.org/converterret.asp makes this for you. You can convert the ISBN to an EAN barcode and black and white it out. If you desire to understand more, travel to http://www.isbn.org/standards/home/index.asp

Library of United States Congress Catalog Number

Older books may just have got a LCCN. This doesn't interpret to a UPC, EAN or ISBN and although the Library of United States Congress have an online database, it often only incorporates the figure for a book's first edition. The LCCN is never barcoded.

Labels: , , , ,


Post a Comment

<< Home