\begin{figure}[placement] body of the figure \caption{figure title} \end{figure}Figures are objects that are not part of the normal text, and are usually "floated" to a convenient place, like the top of a page. Figures will not be split between two pages.
The optional argument [placement] determines where LaTeX will try to place your figure. There are four places where LaTeX can possibly put a float:
The body of the figure is made up of whatever text, LaTeX commands, etc., you wish. The \caption command allows you to title your figure.