Time for action – lining up font commands

In Chapter 2, Formatting Words, Lines, and Paragraphs, we've got to know a lot of font commands and declarations. We saw a table containing those commands and example output. Now we shall create such a table ourselves:

1. Begin a new document, like the one in step 1 of our previous example, but define a command for setting the font of our header:

   \documentclass{article}
   \newcommand{\head}[1]{\textbf{#1}}
   \begin{document}
   \begin{tabbing}

2. Write the first row set tab stops by \= and use \> to move to the tab stops. Use the command \verb|…| to typeset the LaTeX commands:

   \begin{tabbing}
   Family \= \verb|\textrm{...}| \= \head{Declaration} \= \kill
     \> \head{Command} \> \head{Declaration} \> \head{Example}\\
   Family \> \verb|\textrm{...}| \> \verb|\rmfamily|
     \> \rmfamily Example text\\
     \> \verb|\textsf{...}| \> \verb|\sffamily|
     \> \sffamily Example text\\
     \> \verb|\texttt{...}| \> \verb|\ttfamily|
     \> \ttfamily...