The tags covered in this section provide meta information about the document, such as author, title, data of publication, etc.
Example 2.1. DocBook metainformation
<bookinfo> <title>The TZirrdle Handbook</title> <authorgroup> <author> <firstname>George</firstname> <othername>N.</othername> <surname>Ugnacious</surname> </author> </authorgroup> <date>03/04/1999</date> <releaseinfo>1.01.00</releaseinfo> <abstract> <para> <application>twiddle</application> is an application specially designed to do nothing you would ever want. </para> </abstract> <keywordset> <keyword>twiddle</keyword> <keyword>sample application</keyword> </keywordset> </bookinfo>
The <bookinfo> tag contains all of the meta information for your document, as opposed as its contents that are in the various chapters. This allows you, for instance, to:
conveniently retrieve a specific document among many others on your system;
print some information on the front page, under the control of the style sheets;
serve it to search engines if you put it online in HTML format.