As anything else, you read from left to right, the first two digits make up the group number. The second set of numbers make up the publisher number. The title number is the next set of numbers, and last are the check digits for the barcode. ISBN stands for International Standard Book Number making it a unique commercial book identifier based on the 9-digit Standard Book Numbering code created by
. Gordon Foster, the Emeritus Professor of Statistics at the Trinity College in Dublin for book sellers and stationers. You can find more information here: http://www.isbn.org/standards/home/index.asp
