%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-6-2 on page I-239 in "todonotes --- Adding todos to your document".
%%
%% 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{231.0pt}

\setlength\textfloatsep{12pt plus 2pt} % less separation

%StartShownPreambleCommands
\usepackage{todonotes}
%StopShownPreambleCommands

\begin{document}
\begin{figure}
  \centering
  \missingfigure[figheight=90pt,
                 figwidth=170pt]
                {Graphic on PLC}
  \caption{The product lifecycle
           stages}
  \label{fig:plc}
\end{figure}
As shown in Figure~\ref{fig:plc}
the four product lifecycle stages
are Introduction, Growth, Maturity
and Decline.
\end{document}