<bookabstract>The <bookabstract> element references a topic used within a
bookmap as a brief summary of book content, generally output as part of the book's front matter. It
is used to help the reader quickly evaluate the book's purpose.
See appendix for information about this element in OASIS document type shells.
- map/topicref bookmap/bookabstract
See the example in bookmap.
The following attributes are available on this element: Universal attribute group, Link relationship attribute group (with a narrowed definition of @href,
given below), Attributes common to many map elements, @navtitle and @copy-to
from Topicref element attributes group, outputclass, and @keyref.
@href<topicref>. See The href attribute for detailed information on supported values
and processing implications. References to DITA
content cannot be below the topic level: that is,
you cannot reference individual elements inside a
topic. References to content other than DITA
topics should use the @format
attribute to identify the kind of resource being
referenced.