International Article Number
EAN is one of those acronyms that has outlived its original meaning. It used to stand for European Article Number, and was a bar-coding system mostly used in...Europe.
However, as global trade increased, and big-box stores began selling an increasingly large variety of products, it became clear that books were going to be among those products. Rather than re-stickering or having dual bar codes, it made sense for the ISBN bar code to become part of the EAN system. Thus the invention of Bookland. The EAN's first 3 digits are a specified country code. Books were given their own country - Bookland - with the digits 978 or 979. The rest of the Bookland EAN follows the pattern of the formerly 10-digit ISBN (language code, publisher prefix, item number), but the check digit is recalculated to accommodate the additional 3 digits.