# How to make the title of the book bolder than \bf?

My code:

\documentclass[a4paper,12pt]{book}
% Title
\usepackage{titling}
\author{}
\pretitle{\begin{center} \huge\bf} \title{\uppercase\expandafter{\romannumeral3\relax} MY\\BOOK} \posttitle{\end{center}}
\date{}
\begin{document}
\maketitle
\end{document}


Result:

I need to make the title bolder than I am getting. How can I achieve that?

• \bf has not been defined by default in latex since LaTeX2e was introduced in 1993. Jul 14 at 16:53
• computer modern is only available in two weights. It is also a very light font, you could change your entire book to eg a times roman clone (\usepackage{newtxtext,newtxmath}) which would be a darker font. Jul 14 at 16:55
• If you have a font that has extrabold or ultrabold etc, you could use that via fontspec package (example with Arial: tex.stackexchange.com/questions/605192/…). Noto Serif font has many weights; so do many other fonts. Jul 16 at 14:34

Perhaps use a larger font than a smaller bolder font. BTW use \bfseries instead of \bf.

% booktitleprob.tex  SE 605001
\documentclass[a4paper,12pt]{book}
\usepackage{comment}
% Title
\usepackage{titling}
\author{}
\begin{comment} % the original
\pretitle{\begin{center} \huge\bf}
\title{\uppercase\expandafter{\romannumeral3\relax} MY\\BOOK}
\posttitle{\end{center}}
\end{comment}
% the revision
\pretitle{\begin{center} \Huge\bfseries}
\title{\uppercase\expandafter{\romannumeral3\relax} MY\\BOOK}
\posttitle{\end{center}}
\date{}
\begin{document}
\maketitle
\end{document}