%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-3-31 on page I-356 in "Customizing the \protect \nxLenv  {multicols} environment".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}

%StartShownPreambleCommands
\usepackage{multicol,ragged2e,color}
\addtolength\columnsep{2pt}
\setlength\columnseprule{1pt}
\renewcommand\columnseprulecolor{\color{blue}}
%StopShownPreambleCommands

\begin{document}
\begin{multicols}{3}  \RaggedRight
  Here is some text to be distributed over
  several columns. In this example ragged-right
  typesetting is used.
\end{multicols}
\end{document}