Page Layout ⇒ Consistency in the header

[Cham]

Recently, I add to refresh the header of some large book I wrote, and I noticed an inconsistency in the font size. Here's a MWE to show it:

Code: Select all

\documentclass[11pt,letterpaper,twoside]{book}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{slantsc}
\usepackage[total={6in,10in},left=1.5in,top=0.5in,includehead,includefoot]{geometry}
\usepackage{microtype}
\usepackage[pagestyles,medium]{titlesec}

\newcommand*{\headerstyle}{\slshape\small\MakeUppercase} % slshape\scshape

\newpagestyle{principal}{
	\sethead[\thepage][][\headerstyle{\chaptername\ \thechapter. \chaptertitle}]{\headerstyle{\thesection\ \sectiontitle}}{}{\thepage}
	\headrule
}

\usepackage{blindtext}

\begin{document}
\frontmatter
\tableofcontents
\mainmatter
\pagestyle{principal}

\chapter{A first chapter title}
\blindtext[5]
\section{A funny section title}
\blindtext[5]
\section{Another hilarious section title}
\blindtext[5]
\chapter{Some funky chapter title}
\blindtext[5]
\section{This section title is really boring}
\blindtext[5]
\section{Really funny section title}
\blindtext[5]

\end{document}

The page number is in normal size, while the chapter/section title is using a small font (\slshape\small\MakeUppercase). The titles are pretty big if I remove the \small command. I could use Small Caps instead (and the slanted version from the slantsc package).

But then I'm wondering about the normal, professional or common headers out there. What should be the proper size of chapters and sections titles in the header, relative to the page number?

And is Small Caps (and its slanted version) a good header style for a typical book?

[Johannes_B]

https://tex.stackexchange.com/questions ... s-examples