The world of UPC barcodes can be daunting and confusing. The purpose of this group of articles is to help you better understand how barcodes work.

Click on one of the links below to to that page:

Introduction to Barcodes
UPC and EAN Facts
GTIN and UPC Barcodes
Are the U.P.C. and EAN-13 the same symbols
Barcode Glossary
Anatomy of a Barcode
The Check Digit
Barcode Sizes
Country Codes
What is a coupon code?
Barcodes for Amazon
Barcodes for Greeting Cards
Barcodes for Music
Barcodes for Books
Barcodes for Magazines
Shipping Container Barcodes