Clickable Link back to the Table of Contents

This can be done with hypertarget and hyperlink from the hyperref package. See the example below:

\documentclass{article}
\usepackage{hyperref}

\begin{document}
Title Page\newpage

% Add a link target to the TOC itself
\addtocontents{toc}{\protect\hypertarget{toc}{}}

% Print the TOC
\tableofcontents
\newpage

% Sections with a hyperlink to TOC
\section[One]{One. Go to \hyperlink{toc}{TOC}}
Text that points to \hyperlink{toc}{Table of Contents}.

\end{document}

Something like this:

\documentclass{book}


\usepackage{hyperref}

\begin{document}

\phantomsection 
\hypertarget{MyToc}{}  % Make an anchor to the toc
\tableofcontents

\chapter{Dummy}


\chapter{Yet another Dummy}

Jump to my incredible \hyperlink{MyToc}{Table of contents}

\end{document}

Change the relevant documentclass at will.