<\body> The provides tags for title information. The following high-level tags can only be used when encapsulated inside a tag: <\description> >Specify a title for the document. >Specify one or several authors for the document. >Specify the address of the author. >Specify an address of an author (in case of multiple addresses). >Specify the email address of the author. >Specify the creation date of the article. The and use the and tags for specifying the running title and header. You may override these by reusing . The above tags also depend on the following low-level tags for their physical layout: <\description> >Macro with one argument which specifies the physical layout of titles. >Macro with one argument which specifies the physical layout of authors. >Macro with one argument which specifies the physical layout of addresses. >Macro with one argument which specifies the physical layout of email addresses. >Macro with one argument which specifies the physical layout of creation dates. The also defines the tag for abstracts of documents. <\initial> <\collection>