Index in LaTeX: dit spreekt voor zichzelf.

\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage{imakeidx}
\makeindex[columns=3, title=Alphabetical Index, intoc]
 
\begin{document}
 
\tableofcontents
 
\section{Introduction}
In this example several keywords\index{keywords} will be 
used which are important and deserve to appear in the 
Index\index{Index}.
 
Terms like generate\index{generate} and some\index{others} 
will also show up. Terms in the index can also be 
nested \index{Index!nested}
 
\clearpage
 
\section{Second section}
This second section\index{section} may include some special 
word, and expand the ones already used\index{keywords!used}.
 
\printindex
\end{document}