From: BookCoverDesigner: firstname.lastname@example.org
"Bar codes seem to be a never-ending point of contention. I frequently get eMails from clients about bar codes saying things like, 'it's too big. It's much bigger than the ones on the books I have here.' That's quite possible. Here's why: People often confuse UPC bar codes with Bookland EAN bar codes; since going to the 13-digit ISBN (Jan. 2007), bar codes have to be longer just to incorporate the extra numbers; most authors will now need to have the price embedded into the bar code, whereas this wasn't always necessary in the past. The Book Industry Study Group (BISG) has conveniently published the guidelines for bar codes on their site, and here's what they say: The Bookland EAN symbol, which always includes the 5-digit add-on, is 1' high x 2-3/16' wide at 100% magnification. At 80% magnification the overall size is approximately 13/16' high x 1-3/4' wide. Magnification may be any size between 80% and 200%. For offset printing it should not be necessary to print larger than 100%. (NOTE: Width is measured with a 3/32 inch 'quiet zone' on either side of bars. Height is measured from the top of the bars to the bottom of the numbers below the bars.)”"