%%
%% The LaTeX Companion, 3ed
%%
%% Example 9-3-16 on page I-675 in "relsize, scalefnt --- Relative changes to the font size".
%%
%% 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{159.0pt}

% To show real and faked capitals we use
% the commercial Lucida fonts in the example:

  \typeout {***^^JThis example requires commercial fonts that are not provided
    with a free LaTeX installation but must be obtained separately.^^J***}
  \usepackage [T1]{fontenc}
  \IfFileExists {lucidabr.sty}
                {\usepackage [T1,expert]{lucidabr}}
                {\typeout {The lucidabr package is not available}\stop } 
  \usepackage[lucidasmallscale]{lucidabr}

%StartShownPreambleCommands
\usepackage{relsize}
%StopShownPreambleCommands

\begin{document}
\Large Some large text with  a few
    {\relsize{-2}small words} inside.
\par\medskip
\normalsize\noindent
S\textsmaller[1]{MALL} C\textsmaller[1]{APS} (faked)\\
\textsc{Small Caps} (real; compare the running length
     and stem thickness to previous line).
\end{document}