%%
%% The LaTeX Companion, 3ed
%%
%% Example 7-5-12 on page I-570 in "keyfloat --- Bringing most packages under one roof".
%%
%% 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{207.0pt}


  \setlength\marginparwidth{2cm}
  \addtolength\textwidth{-2.3cm}


%StartShownPreambleCommands
\usepackage{kantlipsum,keyfloat}
%StopShownPreambleCommands

\begin{document}
\kant[1][2]
\keyfig[M]{w=7mm,mo=-.5\baselineskip,
           r=15,cstar=The letter I}{I}
Another paragraph following the (centered)
graphic in the margin.
\end{document}