In a sense, all barcodes* are “packaging barcodes.” It would be tough to find a consumer package that did not have a UPC. The four examples above, however, are also “packaging barcodes” in the sense that each one illustrates the type of the package that it would likely appear on. (Which raises the specter of a Droste effect vanity barcode!)
Beach Packaging Design
*Footnoted digression: “UPC” or “Barcode” ? I tend to call these UPCs, but I’m glad, in a way, that they went with “barcodes.” Why? Because with “UPC” (as with “IRA”) we tend to forget what it is that the initials stand for. As a result, people will say redundant stuff like ”UPC code” (Universal Price Code code)—or “IRA account” (Individual Retirement Account account). Not that Yael & Reuben would ever do that, but—you know—people who blog about it might.