%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-1-11 on page I-138 in "parskip --- Adjusting the look and feel of paragraphs".
%%
%% 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{255.0pt}
\usepackage{microtype}
%StartShownPreambleCommands
\usepackage{kantlipsum}
\usepackage{multicol}
  \raggedcolumns
\usepackage{parskip}
%StopShownPreambleCommands

\begin{document}
\begin{multicols}{2}
  \kant[1][1] % one sentence
  \kant[1][2] % paragraphs
  \kant[1][3]
\end{multicols}
\end{document}