The base package of gawk comes pre-installed with `GAWK: Effective AWK
Programming` and `TCP/IP Internetworking with gawk` user's guides, and you can
access them via info pages.
However, this way of displaying information is less convenient for printing or
displaying images. Therefore, this doc subpackage can provide you with HTML, PDF
and PS versions of those documents, which might be useful when you need to
access them regularly, and/or when you do not have access to Internet.