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EAN-139780746047057   EAN-13 barcode 9780746047057
Product NameCaterpillars and Butterflies (Beginners)
LanguageEnglish
CategoryBook / Magazine / Publication
Amazon.comA Buy on Amazon ~ 0746047053
SKU0925-WS1701-A03067-0746047053
Price Used1.98 US Dollars    (curriencies)
AuthorStephanie Turnbull
Page Count32
BindingHardcover
Published01/31/2003
Long DescriptionThis exploration of caterpillars and butterflies is part of a series introducing children to the wonder of the world around them. It has two reading levels, with a simple sentence on each page for beginners, accompanied by more complex information which can be read as the child's ability grows.
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Created10-04-2012 3:48:47am
Modified04-09-2017 8:49:58pm
MD5228d40e3ad7353d5933e278c95426ef3
SHA256bd9af37c0f7f01dc62303c6ea09a2c87361ea2b84b0d0dffa065f1a4f255522a
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Article of interest

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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