(texinfo) References

(texinfo) Cross Reference Commands
 
 What References Are For
 =======================
 
   Often, but not always, a printed document should be designed so that
 it can be read sequentially.  People tire of flipping back and forth to
 find information that should be presented to them as they need it.
 
   However, in any document, some information will be too detailed for
 the current context, or incidental to it; use cross references to
 provide access to such information.  Also, an online help system or a
 reference manual is not like a novel; few read such documents in
 sequence from beginning to end.  Instead, people look up what they
 need.  For this reason, such creations should contain many cross
 references to help readers find other information that they may not
 have read.
 
   In a printed manual, a cross reference results in a page reference,
 unless it is to another manual altogether, in which case the cross
 reference names that manual.
 
   In Info, a cross reference results in an entry that you can follow
 using the Info `f' command.  ( Some advanced Info commands
 (info)Help-Adv.)
 
   The various cross reference commands use nodes (or anchors, 
 `@anchor' anchor.) to define cross reference locations.  This is
 evident in Info, in which a cross reference takes you to the specified
 location.  TeX also uses nodes to define cross reference locations, but
 the action is less obvious.  When TeX generates a DVI file, it records
 each node's page number and uses the page numbers in making references.
 Thus, if you are writing a manual that will only be printed, and will
 not be used online, you must nonetheless write `@node' lines to name
 the places to which you make cross references.
Info Catalog
(texinfo) Cross References
(texinfo) Cross Reference Commands
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