This attribute holds a keyword from a small set of options that identifies the secondary audience for the material in the section, including such categories as "Librarian" and "Undergraduate". If used, the primaryaudience attribute must be used too, and the keywords in these two attributes must differ:

primaryaudience="Consumer" secondaryaudience="Librarian"

Defined in shared attribute group: "Section Attributes"

This attribute is not required. The allowed values are "Researcher", "Professional", "Librarian", "Educator", "Non-specialist", "Undergraduate" and "Consumer".

The DTD contains the following attribute definition (note that embedded links are to definitions within the DTD page of this guide):

                secondaryaudience        (Researcher | Professional | Librarian | Educator | 
                                          Non-specialist | Undergraduate | Consumer)  #IMPLIED