tags:

If your Latex document has two or more columns, if you add a figure or table, it will span one column and then overlap with the text from the second one. To fix this and let the object take up space in both columns, just add a star after the object name, like this:

\begin{table*}
\centering
\caption{Table Caption}
\begin{tabular} …
\end{tabular}
\end{table*}

or, for a figure:

\begin{figure*}[!t]
\centering
\includegraphics[width=7in]{filename}
\caption{ Figure Caption}
\label{label}
\end{figure*}