Help buffers provide the commands of View mode (see section Miscellaneous File Operations), plus a few special commands of their own.
When a command name (see section Running Commands by Name) or variable name (see section Variables) appears in the documentation, it normally appears inside paired single-quotes. You can click on the name with Mouse-2, or move point there and type RET, to view the documentation of that command or variable. Use C-c C-b to retrace your steps.
There are convenient commands for moving point to cross references in
the help text. TAB (
help-next-ref) moves point down to the
next cross reference. Use S-TAB to move point up to the
previous cross reference (
Go to the first, previous, next, last section, table of contents.