Standard 12-digit UPC barcodes were originally created to help grocery stores speed up the checkout process and keep better track of inventory, but the system quickly spread to all other retail products. Every item, as well as every size package, needs a unique barcode.
The last digit of the UPC code is called a check digit. This digit lets the barcode reader determine if it scanned the number correctly or not.
GO GREEN: BARCODE ART READER
Although I pretty much loved 2D matrix barcodes in the past (aka QR-Codes), I'm rediscovering the beauty of simplicity and rationality through a 1D linear representation of data. Easily scan any of my barcoded artwork straight from your palm to perform a quick "Google product search" for further details. Save papers. Save trees. Go green. Go mobile.
Scan above barcode to perform a quick "google product search": install Shape, ZBar or just take a picture with Goggles.
iPhone most simple app: SHAPE
iPhone most smarter app: ZBar. No android app yet. Shit! I'll have to stuck with my f*** iphone :( Make sure to set the GTIN to 12.