LaTeX.org

You're right, sorry, it does work. Thank you very much.

I would like to keep the "Introduction" heading without a number.

My code,

\documentclass[12pt,a4paper]{article}
\usepackage[ascii]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}

\begin{document}

\title{Literature Review}
\author{Riku Raisanen}
\maketitle

\newpage
\tableofcontents
\newpage

\part*{Introduction}
\addcontentsline{toc ...