Image
EAN-130000003194669   EAN-13 barcode 0000003194669
UPC-A000003194669   UPC-A barcode 000003194669
Product NamePfizer Chicken Feed Terramycin Fights Disease Farm 1960 Antique Advertisement
CategoryMusical Instrument
Short DescriptionEach
Amazon.comA Buy on Amazon ~ B00BGPB4PI
Long DescriptionOriginal Farm & Home & Agricultural & Automobile Vintage Advertisements. Fair Condition - Yellowing and Age - Each Large Page 12" x 14" (approximately).
Created07-01-2006
Modified09-05-2018 6:03:53pm
MD5f57c0b0bcbb408e45e9d4743b3d1f563
SHA256d1d5b7f4129d16085cc479d8a54307d6d724835e91f5d006bb57aef43e274bfe
Search Googleby EAN or by Title
Query Time0.0012619

ISBN stands for International Standard Book Number. Originally this was a 10 digit number known as ISBN-10, but has been replaced with a 13 digit version known as ISBN-13 (aka EAN-13) to better fit in with the industry standard product numbering system.

The ISBN system offers a unique numbering system for books and publications of various types. ISBN offers 9 identification digits for each book or publication and one check digit. ISBN-13 expands the available number set by doubling the available numbers. You might think that the extra three digits would more than double the available numbers but ISBN is limited within the EAN-13 numbering system and will always start with 978 or 979 as the first three digits, leaving only 9 more digits for the actual identification digits and again the last digit is the check digit.

Any ISBN-10 number can be converted to ISBN-13. Any ISBN-13 number that starts with 978 can be converted back to ISBN-10. ISBN-13 numbers that start with 979 cannot be converted to ISBN-10.

The conversion process from ISBN-10 to ISBN-13 is a rather simple one. Start with the first 9 digits of the ISBN-10 number, place 978 in front and calculate the new check digit using the standard EAN check digit calculation.

If you want to calculate the check digit for ISBN-10, that is done using a MOD-11 calculation that is very different than the EAN check digit process.

ISBN-1-5905-9332-4

Look at the number above and below the barcode. You will see that except for the last digit in the ISBN number, all of the digits exist in the 13 digit version shown under the barcode right after the 978 and just before the new check digit of 5.

Now you can see how easy it is to convert between ISBN-10 and ISBN-13.

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