Practical guides on barcodes and QR codes — which format to pick, how to print labels that actually scan, and how the technology works under the hood.
A practical breakdown of what each format is good at, so you can pick the right one for packaging, tickets, inventory or marketing.
Read article →A plain-English tour of the most common barcode symbologies and where each one is actually used in the real world.
Read article →Sizing, contrast, quiet zones and printer settings — the small details that make the difference between a scan and a failed read.
Read article →What GS1 prefixes and check digits actually mean, and when you do — and don't — need an officially registered barcode number.
Read article →A look under the hood at laser and camera-based scanning, why QR codes have corner squares, and what causes failed reads.
Read article →Product listing barcodes, internal SKUs, carton codes and post-purchase QR codes — which format does which job.
Read article →From a 1949 patent sketched in sand to a pack of Wrigley's gum in the Smithsonian — how the barcode became retail infrastructure.
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