'At the grocery store, you read the front of the box, but the register reads this jumble of lines'
Bar code
B.C.: At the grocery store, you read the front of the box, but the register reads this jumble of lines
At the grocery store, you read the front of the box, but the register reads this jumble of lines
At the grocery store, you read the front of the box, but the register reads this jumble of lines
"B.C."
Bar code
"B.C."