Titled, numbered collection of block-level elements--chapters don't require explicit numbers, a chapter number is the number of previous chapter elements in the XML document plus 1
* appendix: Contains text that represents an appendix
* dedication: Text represents the dedication of the contained structural element

Structural elements can contain other structural elements. Structural elements are the only permitted top-level elements in a DocBook document.

Block-level

1.Previous
3.Next