Numbering to start from section not chapter

Question

I want chapters not to have any numbers (both in the text and in the table of contents) and the numbering in each section to start from 1. For example (both in text and toc):

Introduction
1 Section
1.1 Subsection
2 Section

Literature Review
1 Section
1.1 Subsection
2 Section

The default behavior is:

Chapter 1 Introduction
1.1 Section
1.1.1 Subsection
1.2 Section

Chapter 2 Literature Review
2.1 Section
2.1.1 Subsection
2.2 Section

The reason why I am after achieving this effect is:

• Because the document I am writing is lengthy, I need to break it into many parts, hence I really need the subsubsections to be numbered (in the text and toc).
• Again because of its length, I think the chapters have a more substantial role in separating the text, therefore having the section numbers to start sharp at 1 instead of x.1 would be a good idea.

Answer 1

One possibility, using the titlesec, titletoc duo:

\documentclass{book}
\usepackage{titlesec}
\usepackage{titletoc}

\titleformat{\chapter}[display]
  {\normalfont\huge\bfseries}{}{0pt}{\Huge}
\renewcommand\thesection{\arabic{section}}

\titlecontents{chapter}
  [0em]{\addvspace{10pt}\bfseries}
  {}{}{\titlerule*[1000pc]{.}\contentspage}

\begin{document}

\tableofcontents
\chapter{First Chapter}
\section{Test Section One}
\section{Test Section Two}
\chapter{Second Chapter}
\section{Test Section One}
\section{Test Section Two}

\end{document}

The ToC:

The initial page of the first chapter:

To have the subsubsections numbered you need to add to the preamble

\setcounter{secnumdepth}{3}

and to include them in the ToC,

\setcounter{tocdepth}{3}

You will also probably need to redefine \thefigure and \thetable to suppress the chapter numbering.