LaTeX font changing commands

\documentclass{article}

\begin{document}
Font changing commands:
\begin{itemize}
\item \emph{emphasized, which means italics in upright context and
    \emph{upright} in slanted context}.
\item \textit{italics};
\item \textbf{bold};
\item \texttt{typewriter};
\item \textsf{and} \textsc{some} \textsl{more}.
\end{itemize}
These styles \textit{can be \textbf{nested}}.

\end{document}