Answers.Body: <p>First, we need to distinguish what is what code is used for. Some code do not describe books (<code>ISSN</code>, <code>ISMN</code>, <code>URN</code>). Others describe library sorting (<code>LCSH</code>, <code>DDC</code>), where these systems were built long before computers and electronic books (LCSH - 1898, DDC - 1876). And there is not a complete practice of dealing with this.</p>
  
  <p><br>
  <strong>ISBN</strong> - International Standard Book Number</p>
  
  <p>This is for books. Practice is such that every format (<code>Epub</code>, <code>PDF</code>, <code>Mobi</code>, <code>DjVu</code> etc.) has own ISBN. (It should be.) Sometimes a paperback and a hardcover book have their own ISBN code.</p>
  
  <p><br>
  <strong>ISSN</strong> - International Standard Serial Number</p>
  
  <p>This is for periodicals (magazines, a periodically published series of books etc.) It is not required in my country. Perhaps it will be similar in other countries. What I know, the code should be the same (for paper and digital copy).</p>
  
  <p><br>
  <strong>ISMN</strong> - International Standard Music Number for Printed Music</p>
  
  <p>This is for music. No for ebooks.</p>
  
  <p><br>
  <strong>URN</strong> - Uniform Resource Name</p>
  
  <p><code>URN</code> uses a "urn" scheme and does not address the availability of the identified resource. This is prefix example for ISBN and ISSN.</p>
  
  <pre><code>urn:isbn:0451450523
  urn:ISSN:0167-6423
  </code></pre>
  
  <p><br>
  <strong>LCSH</strong> - Library of Congress Subject Headings</p>
  
  <p>I am not American. I do not know how you handle it. I recommend visiting the congress library web site.</p>
  
  <p><br>
  <strong>DDC</strong> - Dewey Decimal Classification or Dewey Decimal System</p>
  
  <p>I suppose it should be taken as another edition of the book. What I know is distinguished by the letter (one character) at the end (in my country). But library practice may vary.</p>
  
  <p><br>
  Summary:</p>
  
  <p><strong>ISBN</strong> - different<br>
  <strong>ISSN</strong> - same + postfix<br>
  <strong>DDC</strong>  - same + postfix<br> </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-04T20:39:51.603Z
Answers.Text: re ISBN I thought that hardback and paperback should have different codes and if they had the same one it is an error.
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Answers.Text: As to does an ebook need an ISIN - depends on publisher and way of dstribution e.g. Amazon does not require one. If an epub has an ISBN then it must differ from the paperback also Amazon format and epub and pdf will all have different ISIN
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Answers.CreationDate: 2018-10-01T20:54:59.497Z
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Answers.UserDisplayName: Stilgar Dragonclaw
Body: <p>Does the epub and paperback publication of same book requires separate following identifiers ?</p>
  
  <ul>
  <li>ISBN</li>
  <li>ISSN </li>
  <li>ISMN  </li>
  <li>URN</li>
  <li>LCSH</li>
  <li>DDC</li>
  </ul>
  
Tags: <epub><ebook-management>
Title: Do epub and paperback publication of same book need seperate Identification number (like ISBN)?
UserDisplayName: nithinTa
ThreadText: # Do epub and paperback publication of same book need seperate Identification number (like ISBN)?
  
  (Asked by: username_0 on 2018-01-09)
  
  Does the epub and paperback publication of same book requires separate following identifiers ?
  
  * ISBN
  * ISSN
  * ISMN
  * URN
  * LCSH
  * DDC
  
  **Tags:** epub, ebook-management
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-10-01. Score: 1
  
  First, we need to distinguish what is what code is used for. Some code do not describe books (ISSN, ISMN, URN). Others describe library sorting (LCSH, DDC), where these systems were built long before computers and electronic books (LCSH - 1898, DDC - 1876). And there is not a complete practice of dealing with this.
  
  ISBN - International Standard Book Number
  This is for books. Practice is such that every format (Epub, PDF, Mobi, DjVu etc.) has own ISBN. (It should be.) Sometimes a paperback and a hardcover book have their own ISBN code.
  
  ISSN - International Standard Serial Number
  This is for periodicals (magazines, a periodically published series of books etc.) It is not required in my country. Perhaps it will be similar in other countries. What I know, the code should be the same (for paper and digital copy).
  
  ISMN - International Standard Music Number for Printed Music
  This is for music. No for ebooks.
  
  URN - Uniform Resource Name
  URN uses a "urn" scheme and does not address the availability of the identified resource. This is prefix example for ISBN and ISSN.
  urn:isbn:0451450523
  urn:ISSN:0167-6423
  
  
  LCSH - Library of Congress Subject Headings
  I am not American. I do not know how you handle it. I recommend visiting the congress library web site.
  
  DDC - Dewey Decimal Classification or Dewey Decimal System
  I suppose it should be taken as another edition of the book. What I know is distinguished by the letter (one character) at the end (in my country). But library practice may vary.
  
  Summary:
  ISBN - different
  ISSN - same + postfix
  DDC  - same + postfix
  
  > **Comments:**
  > **username_2**: re ISBN I thought that hardback and paperback should have different codes and if they had the same one it is an error.  
  > **username_2**: As to does an ebook need an ISIN - depends on publisher and way of dstribution e.g. Amazon does not require one. If an epub has an ISBN then it must differ from the paperback also Amazon format and epub and pdf will all have different ISIN  
  
  ---
  
  