The preface element references a topic or map containing introductory information about a book, such as the purpose and structure of the document.
See appendix for information about this element in OASIS document type shells.
- map/topicref bookmap/preface
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.
- A pointer to the resource represented by the 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.