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As of 2007, all publishers are expected to provide newly issued books with 13-digit ISBNs. Many books published between 2004 and 2006 have also been (explicitly) assigned ISBN 13s (they all have one based on the 10 digit ISBN, or 9 digit SBN). The effect of the new standards policies is that every
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the ISBN-13 printed on them. For all books whose ISBN starts with 978- it is possible to uniquely refer to any book either by its ISBN-10 or its (equivalent) ISBN-13 and both numbers will continue to be reserved for use by that book by the local ISBN agency. Beginning with the 979 prefix, only the
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15 digits starting with 977. In this case the next 7 are the ISSN (omitting its own check digit), the next 2 are used, for example, as a day of the week number; these are followed by a check digit, and the last two are an "issue
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ISBN-13 will work or be meaningful for the given book since there will no longer be an equivalent ISBN-10. There are some plans to eventually phase out the use of ISBN 10s but the effective timing of that is still not clear.
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It is used to build and maintain a list or lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. It is not part of the
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These errors should simply be fixed. The ISBN may have been incorrectly labelled invalid, but we have (to our surprise) found several examples where
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recent book has a pair of equally-effective ISBNs, one ISBN-10 and an equivalent ISBN-13 that begins with 978. (Many current books have
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Typically, tracking categories are automatically populated by templates invoked in pages or by the MediaWiki software (see
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Use WorldCat, national libraries, Alibris, Abebooks, Amazon (now includes the desired ISBN 13s) or other resources from
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These categories also serve to aggregate members of several lists or subcategories into a larger, more efficient list (
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too long (but could be ISBN13 or even an ISBN13 with the digits "13" in front giving 15 digits, or "10" giving 12).
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been identified as invalid, it doesn't mean it corresponds to the book in question, or indeed any book.
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ISBNs actually printed on the back cover). Books issued after 1 January 2007 are expected to have
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not enough digits (could be 9 digits as used in
Standard Book Numbering (SBN) or even an 8-digit
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The ISBN may not show in blue (since a recent update to the magic word. 22 December 2006)
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These categories are used to track, build and organize lists of pages needing "attention
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If you have the book, that is almost always a good place to look. (see talk page)
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Invalid country code / publisher code (see the
International ISBN Agency website)
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13 digit numbers that start with anything other than 978 or 979-10 (as of 2012).
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The person who put the ISBN in may be able to help – look at the edit history
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The ISBN may be unhyphenated, but correctly hyphenated ISBNs are acceptable
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As of 2019 the following ranges of 979-... ISBNs have been encountered:
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The talk page of this category is currently visited reasonably often.
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The template {{Please check ISBN|xxxxxx}} may be next to the ISBN
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run-ons – "ISBN xxxxxxx-73" where the -73 isn't part of the ISBN
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This category may be empty occasionally or even most of the time.
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Sometimes the same invalid ISBN is on several (or many) pages!
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Note that the ISBN hyphenation rule-base is a living document.
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Knowledge (XXG):WikiProject Check
Knowledge (XXG)/ISBN errors
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Administrators: Please do not delete this category as empty!
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This is a maintenance category of articles with invalid
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288:– Italy (in addition to the previous 978-88-... range)
229:for examples). Note that just because a number has
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the publisher has put an invalid number on the book
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161:The main reasons for invalid ISBNs are -
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255:Thirteen-digit ISBNs starting with 979
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268:International Standard Music Number
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388:Category:Pages with ISBN errors
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458:May Ziadeh
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70:en masse
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57:on its
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54:hidden
225:(see
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167:ISSN
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