Current:

 <title>  title  </title>

    replace title with the title of the book. Remove the <title> tags to remove
the title.

Suggested:

Replace title with the name of the product / product stream, for example: Red
Hat Enterprise Linux, or JBoss Enterprise Application Platform.

Current:
<subtitle> subtitle </subtitle>

    replace subtitle with the subtitle of the book. The subtitle will appear
under the title when the book is built. Remove the <subtitle> tags to remove the
subtitle. A subtitle is required to build an RPM. When building a book as an RPM
the subtitle is used as the Summary in the RPM spec file.

Suggested:

Replace subtitle with the actual name of the book, for example: "Server
Configuration Guide".