\documentclass[10pt]{amsart}
\usepackage{local}
\begin{document}
\filename
\begin{tabular}{lll}
\multicolumn{3}{c}{\sc Text Formatting Commands}\\
\hline
Command with Argument & Command Declaration & Switches to \\
\hline

\verb=\emph{...}= & \verb={\em ...}= & {\em emphasis}\\

\verb=\textrm{...}= & \verb={\rm ...}= & {\rm roman}\\

\verb=\textsf{...}= & \verb={\sf ...}= & {\sf sans-serif}\\

\verb=\texttt{...}= & \verb={\tt ...}= & {\tt typewriter}\\

\verb=\textit{...}= & \verb={\it ...}= & {\it italics}\\

\verb=\textsl{...}= & \verb={\sl ...}= & {\sl slanted}\\

\verb=\textsc{...}= & \verb={\sc ...}= & {\sc small capitals}\\

\verb=\textbf{...}= & \verb={\bf ...}= & {\bf bold}\\
\hline

\end{tabular}
\end{document}
