[texhax] Place introduction into TOC without adding a chapter number

[David Niklas]

Hello,
I started writing a book with latex and wanted to include the
introduction in the TOC without giving it a chapter heading and number.
The current code looks much like this:

\documentclass[12pt,letter,draft]{book}
\begin{document}
\frontmatter
\title{Foo book}
\author{me}
\maketitle
\tableofcontents
\newpage
\thispagestyle{empty}
\mainmatter
\chapter*{Introduction}
Hello World!

\end{document}


Thanks, David