packages for inserting images in latex code example
Example 1: include picture in latex
\usepackage{graphicx}
\graphicspath{ {./images/} }
\includegraphics{image}
Example 2: insert figure latex
%...
\begin{figure}[h!]
\centering
\begin{subfigure}[b]{0.2\linewidth}
\includegraphics[width=\linewidth]{coffee.jpg}
\caption{Coffee.}
\end{subfigure}
\begin{subfigure}[b]{0.2\linewidth}
\includegraphics[width=\linewidth]{coffee.jpg}
\caption{More coffee.}
\end{subfigure}
\begin{subfigure}[b]{0.2\linewidth}
\includegraphics[width=\linewidth]{coffee.jpg}
\caption{Tasty coffee.}
\end{subfigure}
\begin{subfigure}[b]{0.5\linewidth}
\includegraphics[width=\linewidth]{coffee.jpg}
\caption{Too much coffee.}
\end{subfigure}
\caption{The same cup of coffee. Multiple times.}
\label{fig:coffee3}
\end{figure}
%...