d lacunae in their knowledge base.  Therefore,
whenever I suspect that a term or procedure will cause head
scratching, I offer an explanation.  And when explanations
aren&#8217;t enough, I offer examples.
</p>

<h3 id="canonical" class="docs">Canonical reference materials</h3>

<p>
The canonical reference materials for groff are
<strong>cstr54</strong> (a downloadable PostScript copy of which
is available
<a href="http://www.kohala.com/start/troff/cstr54.ps">here</a>)
and the <strong>troff</strong> and <str