\usepackage{graphicx} in the preamble. Then, figures
can be included using the \includegraphics[]{} command. Several
arguments can be passed, ie.:
\includegraphics[width=\textwidth]{smallmap.eps}
\includegraphics[angle=90,
height=0.5\textheight,
width=0.49\textwidth]{leaflet1.eps}