# Tables: merging columns

To merge columns, use \multicolumn{no. of cols}{formatting}{text}:

\documentclass[a4paper,12pt]{article}
\usepackage{booktabs}

\begin{document}

\section*{Tables: merging columns}

\begin{table}
\centering
\begin{tabular}{lll}
\toprule
\end{document}
The formatting is of the type you’d use with a tabular environment and the number of columns is how many columns you want to merge.