How to create a navigation file like navigation.xml for an EPUB 2.0.1 book?

At least one navigation file, like navigation.xml, is required for an EPUB 2.0.1 book in the book ZIP container. It provides navigation information like a table of contents of the book.

Here is the requirement on a navigation file:

1. A navigation file should be named with .xml file extension.

2. A navigation file must be an XML file and meet the "Navigation Center eXtended (NCX)" specifications.

3. A navigation file must specify a "dtd:uid" meta element in the "head" element. Its content attribute must have the value of the unique-identifier specified in the package file, for example: content="fyicenter.com.epub.hello".

4. A navigation file must provide a title with the "docTitle" element.

5. A navigation file must provide the "navMap" element with a list of "navPoint" sub-elements.

You can create a navigation file with any text editor. Here is an example called navigation.xml:

<?xml version="1.0" encoding="utf-8"?>
<!-- navigation.xml
  Copyright (c) 2018 FYIcenter.com 
-->
<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">
    <head>
        <meta content="fyicenter.com.epub.hello" name="dtb:uid"/>
    </head>    
    <docTitle>
        <text>Hello</text>
    </docTitle>
    <navMap>
        <navPoint id="link1">
            <navLabel>
                <text>Hello</text>
            </navLabel>
            <content src="/content.xhtml"/>
        </navPoint>
    </navMap>
</ncx>

Download Hello-2.0.epub, and unzip it. You see an example of "navigation.xml" in the root directory.

⇒ Hello-2.0.epub - Content File: content.xhtml

⇐ Hello-2.0.epub - Package File: package.opf

⇑ Introduction of EPUB 2.0 Specification

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