# Underlining section titles [duplicate]

Is there a good way by specifying it in the preamble, to underline my section titles (not chapter titles), instead of having to do \chapter{\underline{Section Title}} for all chapter titles in the body?

I would like it as something like in this picture below:

Thanks!

## marked as duplicate by user156344, Stefan Pinnow, Phelype Oleinik, siracusa, RaajaApr 8 at 2:57

• That is very bad typographical practice. – Bernard Apr 7 at 15:56
• Oo, sorry, I totally switched chapter and section. I meant this one is for the section title, not chapter title. I need to make it that way because of the thesis formatting requirements. – Samyam Shrestha Apr 7 at 16:13
• Thnks, @JouleV, but I could not find how you can underline it and middle align it. I'm new to Latex actually. – Samyam Shrestha Apr 7 at 16:13
• @SamyamShrestha Look at the linked question. – user156344 Apr 7 at 16:14

This is a quick way using sectsty

\documentclass{book}
\usepackage{sectsty}
\sectionfont{\underline\normalfont\normalsize\centering}
\usepackage{lipsum}
\begin{document}
\chapter{This is a chapter}

• titlesec, or you can even edit it manually by redefining \chapter. – user156344 Apr 7 at 16:51