Inserting a figure in LaTeX

LaTeX-Figure.tex

% At the beginning of the document
\usepackage{graphicx}

% At the place you want a figure
\begin{figure}[h]
\centering
\includegraphics[scale=0.3]{pics/foobar.png}
\caption{This is a caption for the figure.}
\label{foobar-figure}
\end{figure}

% Refer to the figure when you want to
As shown in Figure \ref{foobar-figure}, the Foobar is a good choice.