Answers.Body: <p>It's now deprecated in epub3 in favor of the landmark NAV element. 
  <a href="http://www.idpf.org/epub/301/spec/epub-publications.html#sec-guide-elem" rel="nofollow noreferrer">http://www.idpf.org/epub/301/spec/epub-publications.html#sec-guide-elem</a></p>
  
  <p>Because support for NAV is pretty much universal in reading systems, I see no reason why to include it now. </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-01-12T20:08:35.943Z
Answers.LastActivityDate: 2018-01-12T20:08:35.943Z
Answers.UserDisplayName: idiotprogrammer
Body: <p>Suprised I haven't found this when searching the site under the parameters <code>&lt;guide&gt;</code> and when searching IDPF documentation for ePub 3 spec I didn't see an answer.  I was curious what does the <code>&lt;guide&gt;</code> do at the end of the OPF file in an ePub 3?  I did read the write up "<a href="http://epubsecrets.com/where-do-you-start-an-epub-and-what-is-the-guide-section-of-the-opf-file.php" rel="nofollow noreferrer">Where do you start an ePUB and what is the  section of the .OPF file?</a>" but this was published back in 2011 when ePub 2 was still common: </p>
  
  <blockquote>
    <p>“The guide element identifies fundamental structural components of
    the publication, to enable Reading Systems to provide convenient
    access to them.” So how does the  work? Essentially, it points
    to where particular pieces of the book can be found, allowing reading
    systems to go directly to that file or location.</p>
  </blockquote>
  
  <p>For example:</p>
  
  <pre><code>    &lt;guide&gt;
          &lt;reference href="foo.xhtml" type="cover" title="Cover"/&gt;
          &lt;reference href="bar.xhtml" type="text" title="Start"/&gt;
      &lt;/guide&gt;
  &lt;/package&gt;
  </code></pre>
  
  <p>I know traditionally ePub2 used the <code>&lt;guide&gt;</code> often and per Apple documentation I use <code>&lt;guide&gt;</code> in fixed layout but other then that is there still a need for the <code>&lt;guide&gt;</code> or is it only for legacy devices and reading engines?</p>
  
Tags: <epub><opf><guide>
Title: Is the <guide> still needed in ePub 3?
UserDisplayName: DᴀʀᴛʜVᴀᴅᴇʀ
ThreadText: # Is the <guide> still needed in ePub 3?
  
  (Asked by: username_0 on 2018-01-11)
  
  Suprised I haven't found this when searching the site under the parameters  and when searching IDPF documentation for ePub 3 spec I didn't see an answer.  I was curious what does the  do at the end of the OPF file in an ePub 3?  I did read the write up "Where do you start an ePUB and what is the  section of the .OPF file?" but this was published back in 2011 when ePub 2 was still common: 
  
  “The guide element identifies fundamental structural components of
    the publication, to enable Reading Systems to provide convenient
    access to them.” So how does the  work? Essentially, it points
    to where particular pieces of the book can be found, allowing reading
    systems to go directly to that file or location.
  
  For example:
      
          
          
      
  
  
  I know traditionally ePub2 used the  often and per Apple documentation I use  in fixed layout but other then that is there still a need for the  or is it only for legacy devices and reading engines?
  
  **Tags:** epub, opf, guide
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-01-12. Score: 1
  
  It's now deprecated in epub3 in favor of the landmark NAV element.
  <http://www.idpf.org/epub/301/spec/epub-publications.html#sec-guide-elem>
  
  Because support for NAV is pretty much universal in reading systems, I see no reason why to include it now.
  
  
  ---
  
  