# How do you make a customization on the chapter page

I can't figure out how to modify it so that it looks like the image below.

\documentclass{book}
\usepackage{titlesec}

\titleformat{\chapter}
{\normalfont\huge\bfseries}{\thechapter\newline\chaptertitlename\}{150pt}{\huge}

\begin{document}

\chapter{The Chapter Name}

\end{document}


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Here's a possibility. The chapter title is typeset raggedright, on a width equal to the width of the large "Chapter".

\documentclass{book}
\usepackage{tgtermes}
\usepackage{titlesec}

\newlength{\mytitlewidth}

\AtBeginDocument{
\settowidth{\mytitlewidth}{\normalfont\fontsize{60}{0}\selectfont\chaptername}
}

\newcommand{\setchaptertitle}[1]{\parbox[t]{\mytitlewidth}{\raggedright#1}}
\newcommand{\setchapternumber}{%
\smash{\raisebox{-.25\height}{\fontsize{100}{0}\selectfont\thechapter}}}

\titleformat{\chapter}[display]
{\normalfont\fontsize{60}{0}\selectfont}
{\chaptername\ \setchapternumber}
{15pt}
{\huge\setchaptertitle}

\begin{document}
\setcounter{chapter}{12}
\chapter{The chapter title that can go on several lines}

\end{document}


Adjust to suit. I wouldn't use boldface.

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Why not use boldface? Thanks a lot for the answer, I'll experiment a bit with it :) –  Filip Ekberg Jun 10 '12 at 9:27
@FilipEkberg I find that Times (here TeX Gyre Termes) at big sizes is already sufficiently heavy. Bold face would be too much. –  egreg Jun 10 '12 at 9:30
Ok! Thanks. One last thing, when I added this to a file that I've been working on it gave me a lot of "bad box(es)". Any particular reason for that? It's complaining about overfull \hbox on other places than the chapter page. Did this affect anything else? –  Filip Ekberg Jun 10 '12 at 9:56
@FilipEkberg You're not required to use TeX Gyre Termes: I used it just to replicate your picture. –  egreg Jun 10 '12 at 10:00
Oh.. okay. Thanks –  Filip Ekberg Jun 10 '12 at 10:07