About

captions is about captions for figures, tables and other, custom-defined floats or non-floating illustrations which are formatted to look identical to these floats. A popular package is caption.

An example of a caption in LaTeX is the following:

\documentclass{article}

\begin{document}

\begin{figure}
  \caption{Caption}
  \label{fig:1}
\end{figure}

In figure~\ref{fig:1}...

\end{document}