%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-3-30 on page I-355 in "Support for right to left typesetting".
%%
%% 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}

  \addtolength\columnsep{-2pt}

%StartShownPreambleCommands
\usepackage{multicol,ragged2e} \RLmulticolcolumns
%StopShownPreambleCommands

\begin{document}
\begin{multicols}{3} \RaggedRight
  This is the first column and we should soon
  reach the middle column; the rest should
  end up in the final column (i.e., the left).
\end{multicols}
\end{document}