\documentclass[11pt]{book} % Main style of the document
% Margins
\usepackage[a4paper,top=2.5cm,bottom=2.5cm,left=2.5cm,right=2.5cm]{geometry}
% Useful and common packages
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{url}
\usepackage{multicol}
\usepackage{cite}
% Packages to include figures
\usepackage{subfig}
\usepackage{graphicx}
\usepackage{float}
% Packages to use colors in references
\usepackage{color}
\usepackage[colorlinks=true, allcolors=blue]{hyperref}
% Mathematical packages
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{bm}
\begin{document}
% Cover page
\input{./first_pages/cover_page}
\input{./first_pages/acknowledgements}
% To make the index
\tableofcontents
\input{./intro/cap_intro}
% Restart the page numbering
\pagenumbering{arabic}
\setcounter{page}{1}
%% add chapters as needed
\input{./methods/cap_methods}
%% add chapters as needed
\input{./conclusion/cap_conclusion}
\addcontentsline{toc}{chapter}{Bibliography}
\input{./biblio/biblio_latex} % comment this line if you use the .bib file
%%%% uncomment the following lines if you want use the.bib file
%\bibliographystyle{siam}
%\bibliography{./biblio/biblio_bibtex}
\end{document}