Adding a <guide> to your OPF file

Apple and Amazon recommend that you specify the types "cover," "toc," and "text," like this:

<guide>
    <reference type="cover" title="Cover Image" href="cover.xhtml"></reference>
    <reference type="toc" title="Table of Contents" href="toc.xhtml"></reference>
    <reference type="text" title="Startup Page" href="chapter1.xhtml"></reference>
</guide>

Amazon recommends only using those three types, so if you are preparing your file for Amazon, those are all you'll need.

The EPUB 2 spec mentions the following types:

• cover – the book cover(s), jacket information, etc.
• title-page – page with possibly title, author, publisher, and other metadata
• toc – table of contents
• index – back-of-book style index
• glossary
• acknowledgements
• bibliography
• colophon
• copyright-page
• dedication
• epigraph
• foreword
• loi – list of illustrations
• lot – list of tables
• notes
• preface
• text – First "real" page of content (e.g. "Chapter 1")